Continental Army · Civil War · WWI · WWII · Korea · Vietnam · Today
The priests who walked into every American war.
Since 1778, a Catholic priest has stood between the American soldier and eternity. Four of them — Kapaun, Capodanno, O'Callahan, Watters — received the Medal of Honor. Three died doing the job. None of them carried a rifle.
The institutional history of Catholic chaplaincy in the American military is older than the Republic. It begins with a Quebec priest in 1776, runs through every major American conflict for two and a half centuries, and continues today in the foxhole, the hospital ship, and the chapel on the forward operating base.
The Catholic priest in uniform carries no rifle. He is forbidden by the Geneva Conventions from taking part in combat. He is allowed to carry sidearms in some circumstances — most refused. What he carries instead is the sacraments: holy oil, hosts, a stole, the words of absolution, the prayers for the dying. The Church calls this cura animarum — the cure of souls. The Catholic soldier in extremis has the right to confession, communion, and the anointing of the sick. The chaplain exists so that those rights are not denied him.
What follows is not a complete history. It is a through-line — the priests who walked into the fire, named so that they are not forgotten.
How Do Catholics Observe Memorial Day?
The canonical institutional Catholic observance of Memorial Day in the United States is the Annual Memorial Mass at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C. The Mass has been celebrated continuously since 1995 under the patronage of the Archdiocese for the Military Services, U.S.A. The 32nd annual celebration is offered on Sunday, 17 May 2026, with Archbishop Timothy P. Broglio of the Archdiocese for the Military Services as principal celebrant. The schedule: Confession at 3:00 PM ET; Rosary at 3:35 PM; Solemn Vespers at 4:00 PM; Memorial Mass at 4:30 PM. The Mass is offered for the eternal repose of all who died in service to the United States Armed Forces, with intercession in particular for the Catholic faithful among the fallen, their families, and the chaplains who ministered to them in extremis.
The cura animarum of the American Catholic soldier — and the institutional Catholic memory of the men who died in that service — falls in the first instance to the Archdiocese for the Military Services, the canonical ecclesiastical jurisdiction established by Pope John Paul II in 1985 with primary pastoral responsibility for U.S. armed-forces personnel, their families, and U.S. government employees serving overseas — approximately 1.8 million Catholics worldwide. The number of active-duty Catholic priest chaplains serving that population has fallen sharply since the 1960s; the USCCB resource Honoring our Military Chaplains documents the continuing institutional call for diocesan bishops to release priests for military service.
Memorial Day is not Veterans Day. Memorial Day, observed on the last Monday of May, remembers those who died in military service. Catholic observance frames that sacrifice within the offering of the Mass for the dead and the Communion of Saints. The Church prays Requiem aeternam dona eis, Domine, et lux perpetua luceat eis — eternal rest grant unto them, O Lord, and let perpetual light shine upon them. The Mass is offered for the souls of the fallen; the prayer of the living is bound to them in the one Body of Christ.
The Through-Line — 1778 to Today
Father Pierre Gibault — The Patriot Priest of the West (1778)
Father Pierre Gibault, a French-Canadian Sulpician priest serving the Catholic settlements of the Illinois country, threw the weight of his pastoral influence behind George Rogers Clark's Virginia campaign in 1778. His support of the American cause convinced the largely French and Catholic populations of Kaskaskia, Cahokia, and Vincennes to declare for the Continental Congress — a bloodless transfer that secured the Old Northwest for the new Republic. Gibault is the first Catholic priest of consequence in service to American arms.
Father William Corby, CSC — Gettysburg (1863)
On the afternoon of July 2, 1863, as the Irish Brigade prepared to move into the Wheatfield at Gettysburg, their chaplain Father William Corby — later president of the University of Notre Dame — stood on a boulder and gave general absolution to the entire brigade. Hundreds of Catholic soldiers knelt. Within hours, more than half the brigade was casualty. A bronze statue of Father Corby in the act of absolution stands today on the Gettysburg battlefield. A duplicate stands on the Notre Dame campus.
Father Francis P. Duffy — The Fighting 69th (1917–1918)
Father Francis Patrick Duffy served as chaplain to the 165th Infantry Regiment — the old "Fighting 69th" New York — through the trenches of France in the First World War. He walked the front lines under shellfire to hear confessions and give last rites. By war's end he was the most decorated chaplain in US Army history: Distinguished Service Cross, Distinguished Service Medal, French Légion d'honneur, French Croix de Guerre. His statue stands today in Duffy Square at the north end of Times Square in New York City — one of the few statues of a Catholic priest in American public space.
The Four Chaplains — USAT Dorchester (1943)
On the night of February 3, 1943, the troopship USAT Dorchester was torpedoed in the North Atlantic off Greenland. Four chaplains — including the Catholic priest Father John P. Washington, a Methodist minister, a Reformed minister, and a Jewish rabbi — gave away their own life jackets to soldiers who had none. They linked arms on the deck of the sinking ship, praying together as it went down. All four died. Washington and his three brother-chaplains were awarded the Distinguished Service Cross and Purple Heart in 1944, and Congress established Four Chaplains Day in their memory in 1948.
Father Aloysius Schmitt — Pearl Harbor (1941)
Father Aloysius H. Schmitt, a Navy chaplain aboard the USS Oklahoma, was the first US chaplain killed in the Second World War. When the Oklahoma capsized at Pearl Harbor on December 7, 1941, Schmitt remained in the flooding hull, helping sailors escape through a porthole until the rising water made escape impossible. He was awarded the Navy and Marine Corps Medal posthumously. His remains were identified in 2016 and returned to Loras College in Dubuque, Iowa, for permanent interment.
The Four — Medal of Honor
Father Joseph T. O'Callahan, SJ
When two Japanese bombs struck the carrier USS Franklin off the coast of Kobe and set off her own ammunition, Father O'Callahan led firefighting parties, jettisoned hot ordnance over the side, and gave last rites to dying sailors amid burning aviation fuel. Of the carriers struck in the war, Franklin was the most heavily damaged ever to return to port. O'Callahan became the first Navy chaplain ever awarded the Medal of Honor. He survived the war, returned to teach at Holy Cross College, and died in 1964.
Father Charles Joseph Watters
A diocesan priest of Paterson, New Jersey, Father Watters jumped with paratroopers during the Battle of Dak To in the Vietnamese central highlands. As his battalion was engaged at Hill 875, Watters repeatedly left cover to rescue wounded and dying men under enemy fire, refusing to stop. He was killed by a misdirected American bomb while ministering to the wounded. Awarded the Medal of Honor posthumously in 1969.
Father Vincent R. Capodanno, MM
A Maryknoll missionary priest from Staten Island, Capodanno was known to his Marines as "the Grunt Padre." He extended his combat tour twice. During Operation SWIFT on 4 September 1967, he was wounded by mortar fragments in the face and hand while moving between casualties giving absolution. He refused medical evacuation and continued his ministry. When a Navy corpsman was pinned down by a North Vietnamese machine gunner, Capodanno moved toward him to give last rites and was killed by 27 bullets. Awarded the Medal of Honor posthumously in 1969. His cause for canonization was opened in 2002; he was declared a Servant of God in 2006.
Father Emil J. Kapaun
A diocesan priest of Wichita, Kansas, Kapaun served first as an Army chaplain in the Burma-India theater during WWII and then in Korea. At the Battle of Unsan on 1–2 November 1950, when Chinese forces overran his unit, Kapaun refused evacuation, stayed with the wounded, and pushed aside a Chinese rifle aimed at a wounded American. Captured, he was force-marched 87 miles to the Pyoktong prison camp. Over the next six months he stole food for the starving, washed dysentery patients with his hands, and led a hidden Easter Mass with a stick crucifix on March 25, 1951. He died of disease and abuse on 23 May 1951. Awarded the Medal of Honor by President Obama in 2013. His remains were identified at the National Memorial Cemetery of the Pacific and returned to Wichita in 2021.
Father Kapaun — The Korean Account
The fullest primary-source account of Father Kapaun's captivity is in the testimony of the surviving American POWs of Pyoktong camp, collected by the US Army after the prisoner exchange in 1953. Their account is consistent and remarkable.
Kapaun was last seen by free American forces on the night of November 2, 1950, at Unsan. When the Chinese 39th Army overran the 3rd Battalion, 8th Cavalry, he had a clear chance to evacuate with the able-bodied. He stayed. He spent the night moving between foxholes carrying wounded men and giving absolution. At dawn he was taken prisoner with the casualties he had refused to leave.
The march north was eighty-seven miles in subzero temperatures. The Chinese left wounded prisoners on the trail to die. Kapaun carried men on his back. At Pyoktong, the camp commandant began a forced indoctrination program; Kapaun preached against it. He stole millet and food from the guards' stores for the starving Americans. He boiled water from contaminated streams to kill the dysentery bacteria. He washed prisoners' soiled bodies with his hands when no one else would.
On Easter Sunday, March 25, 1951, with permission denied by the guards, Kapaun celebrated Mass in the open courtyard of the camp. He had no chalice. He used a tin cup. He had no crucifix. He fashioned one from sticks. Twenty other Catholic prisoners and many of every other denomination knelt with him. Kapaun read the Passion of John in Latin from memory. He died eight weeks later, on May 23, 1951, of pneumonia and dysentery and abuse, after his Chinese captors moved him to a "hospital" — a death house — without medicine.
"He was the bravest man I ever saw. He gave his life so that we could live." Captain (later Maj. Gen.) Mike Dowe, USA — POW Pyoktong
President Obama awarded Father Kapaun the Medal of Honor on April 11, 2013, in the East Room of the White House. His remains were identified at the National Memorial Cemetery of the Pacific in Honolulu in 2021 and returned to the Cathedral of the Immaculate Conception in Wichita.
Father Capodanno — The Vietnam Account
Father Vincent Capodanno's last day is documented in the citation for the Medal of Honor and in the testimony of the Marines of 1st Battalion and 3rd Battalion, 5th Marines, recovered after Operation SWIFT in the Que Son Valley.
On September 4, 1967, the 1st and 2nd platoons of M Company, 3rd Battalion, 5th Marines were engaged by elements of the 2nd North Vietnamese Army Regiment near the village of Dong Son. Capodanno landed with the relief element from H&S Company. He moved at once into the killing zone and began giving absolution and last rites to wounded Marines under fire.
The Medal of Honor citation records that he was struck by multiple fragments of an exploding mortar round which mangled his right hand and badly wounded his arms and legs. He refused medical evacuation and refused even basic field-dressing. He continued to move among the casualties.
When a Navy corpsman, Petty Officer 3rd Class Armando Leal, was hit and pinned down within fifteen yards of a North Vietnamese machine gun nest, Capodanno moved toward Leal to give him last rites. The machine gun cut him down. The official autopsy recorded twenty-seven entry wounds.
"He had no rifle. He had no rank insignia. He memorized the names of every Marine in his battalion. He extended his tour twice. He carried the sacraments, not a weapon. That is why the Church calls him Servant of God." 1765 Sanctum — Institutional Voice
President Nixon awarded Father Capodanno the Medal of Honor posthumously on January 7, 1969. The destroyer USS Capodanno (FF-1093) was named for him in 1973 and christened by his mother. His cause for canonization was opened by the Archdiocese for the Military Services in 2002; he was declared a Servant of God by Pope Benedict XVI in 2006.
What Does It Mean to Be Declared Venerable?
The Catholic Church recognizes four formal stages in the process of canonization, each requiring an act of the Holy See:
Servant of God. The cause for canonization has been formally opened by the diocesan bishop (or by the relevant religious order, if applicable) after a preliminary inquiry into the candidate's life and reputation for sanctity. This title is granted at the local level and authorizes the gathering of evidence.
Venerable. The Pope, on the recommendation of the Dicastery for the Causes of Saints in Rome, has issued a decree recognizing the candidate's heroic virtue — or, under the oblatio vitae ("offering of life") category established by Pope Francis in the 2017 apostolic letter Maiorem hac dilectionem, has recognized that the candidate freely and prematurely accepted death for the sake of charity. A Venerable may not yet be publicly venerated in the liturgy but may be invoked in private prayer.
Blessed (Beatification). One verified miracle through the candidate's intercession after death has been recognized by the Dicastery. The Pope then issues a decree of beatification, permitting public liturgical veneration within a specific diocese, region, or religious community.
Saint (Canonization). A second verified miracle has been recognized. The Pope issues a decree of canonization — an exercise of the papal magisterium that authorizes universal liturgical veneration and inscription in the Roman Martyrology.
Father Emil Kapaun was declared Venerable under the oblatio vitae category on 24 February 2025 — the recognition that he accepted the certain prospect of his own death in the Pyoktong prison camp out of love for the men he served. Father Vincent Capodanno remains a Servant of God; his cause is presently before the Dicastery in Rome.
Why Does the Catholic Church Wear Red on Pentecost and on the Feasts of the Martyrs?
Red is the one liturgical color in the Roman Rite that names two things at once. The Catholic Encyclopedia states it plainly: red is "the language of fire and blood, indicating burning charity and the martyrs' generous sacrifice." Where another color names one thing, red names two — and the two are bound. The fire of the Holy Spirit descends; the blood of the martyr is poured out; both bear witness to the same charity.
The fire side. Red is worn at Mass on Pentecost Sunday — the moment, fifty days after Easter, when the Holy Spirit descended upon the apostles and the Blessed Virgin Mary in the Upper Room as tongues of fire (Acts 2:1–4). Red is also worn at the Sacrament of Confirmation, when the seven gifts of the Holy Spirit are sealed upon the baptized (Isaiah 11:2–3), and at Holy Spirit votive Masses throughout the liturgical year. The EWTN library entry on the colors of liturgical vestments documents the historical use of red on these feasts as the public sign of "the burning fire of God's love." The Holy Spirit Novena — the oldest novena in the Catholic tradition — is prayed in the nine days between Ascension and Pentecost; in 2026 the novena runs 15–23 May, with Pentecost Sunday falling on 24 May.
The blood side. Red is worn on Palm Sunday and Good Friday for the Passion of the Lord, on the Solemnity of the Most Precious Blood, on the feasts of the Apostles who were martyred (all save St. John, who is in white), and on the feasts of all martyrs in the Roman Calendar. The dual symbolism is not accidental, and it is not abstract. The Catholic chaplains memorialized on this page wore the red of Pentecost as celebrants of Confirmation, and the same red the Church wears for the martyred Apostles is the red their Church wears for them. Father Capodanno was killed by twenty-seven rounds while moving toward a wounded corpsman to give last rites. Father Kapaun died in a North Korean prison camp after stealing food for his men and washing the sick with his bare hands. The same charity that kindled the Upper Room kindled the foxhole. The Church wears red for both. The Aleteia treatment of the hidden meaning behind red vestments on Pentecost develops the patristic background.
The Today — A Shortage of Priests
The Archdiocese for the Military Services, USA, established by Pope John Paul II in 1985, is the ecclesiastical jurisdiction for all American Catholic servicemen and women. Approximately 1.8 million Catholics fall under its pastoral care: active-duty military, reservists, dependents, civilian employees of the Department of Defense, and US government workers overseas.
There are not enough priests. At the time of writing, the AMS reports fewer than 200 active-duty Catholic priest chaplains serving across all branches — down from over 3,000 at the height of the Korean War. A single chaplain may be the only priest for a brigade of soldiers, a forward operating base, or a deploying ship. The shortage is not for lack of need; the need is overwhelming. It is for lack of vocations.
The Archdiocese for the Military Services regularly issues public calls for diocesan bishops to release priests for military chaplaincy. Few do. The shortage continues. If you know a Catholic priest, ask him whether he has prayed about military chaplaincy. If you know a young Catholic man considering the priesthood, ask him the same. The American Catholic soldier in 2026 is still going forward — and increasingly, no priest is going forward with him.
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Get the Field Manual →Frequently Asked
Which Catholic chaplains have received the Medal of Honor?
Four: Father Joseph T. O'Callahan, SJ (USN, USS Franklin, 1945, awarded 1946); Father Vincent R. Capodanno, MM (USN, Vietnam, KIA September 4, 1967, awarded posthumously 1969); Father Charles J. Watters (US Army, Vietnam, KIA November 19, 1967, awarded posthumously 1969); and Father Emil J. Kapaun (US Army, Korea, died in captivity May 23, 1951, awarded posthumously 2013). Three of the four — Capodanno, Watters, and Kapaun — died in service.
Who was Father Emil Kapaun?
Father Emil Joseph Kapaun (1916–1951) was a Catholic priest of the Diocese of Wichita who served as a US Army chaplain in WWII and Korea. At the Battle of Unsan in November 1950, he refused evacuation and stayed with the wounded as his unit was overrun. Captured and force-marched eighty-seven miles to the Pyoktong POW camp, he ministered to fellow prisoners — stealing food, washing the sick, leading a hidden Easter Mass with a stick crucifix — until he died of pneumonia and abuse on May 23, 1951. He was declared a Servant of God in 1993, awarded the Medal of Honor in 2013, and his remains were returned to Wichita in 2021.
Who was Father Vincent Capodanno?
Father Vincent Robert Capodanno, MM (1929–1967) was a Maryknoll missionary priest from Staten Island who became a US Navy chaplain attached to the 5th Marines in Vietnam. Known to his Marines as "the Grunt Padre," he extended his combat tour twice. On September 4, 1967, during Operation SWIFT in the Que Son Valley, he was wounded by mortar fragments and refused evacuation, continuing to give absolution to dying Marines. He was killed by machine gun fire while moving toward a pinned-down corpsman. Awarded the Medal of Honor posthumously in 1969; declared a Servant of God by the Vatican in 2006.
What is the Archdiocese for the Military Services?
The Archdiocese for the Military Services, USA (AMS) is the Catholic ecclesiastical jurisdiction responsible for pastoral care to all Catholic men and women in the US Armed Forces, their families, and US government employees overseas. Established by Pope John Paul II in 1985 and headquartered in Washington, DC, it endorses Catholic priests for military chaplaincy and serves approximately 1.8 million Catholics worldwide. The number of active-duty Catholic priest chaplains has fallen from over 3,000 at the height of the Korean War to under 200 today.
Have Catholic priests served in every American war?
Yes. From the Continental Army to the present, Catholic priests have ministered to American soldiers in every major US military conflict. Father Pierre Gibault supported George Rogers Clark in 1778. Father William Corby absolved the Irish Brigade at Gettysburg in 1863. Father Francis Duffy walked the trenches of France with the Fighting 69th in WWI. Father Joseph O'Callahan, Father Aloysius Schmitt, and Father John Washington served in WWII. Father Kapaun in Korea. Father Capodanno and Father Watters in Vietnam. The Archdiocese for the Military Services continues to endorse Catholic chaplains for active service today.
When was the first Catholic chaplain in American military service?
The first Catholic priest to officially accompany American forces was Father Louis Lotbinière with the Continental Army's Canadian expedition in 1776. The first Catholic priest of substantive consequence was Father Pierre Gibault, the "Patriot Priest of the West," who in 1778 used his pastoral influence to win the support of French-speaking Catholics in the Illinois country for George Rogers Clark's campaign — culminating in the bloodless capture of Vincennes. Formal Catholic chaplaincy in the US military expanded slowly through the 19th century due to anti-Catholic prejudice, and only became fully institutionalized during the Civil War.
How do Catholics observe Memorial Day?
The canonical institutional Catholic observance is the Annual Memorial Mass at the Basilica of the National Shrine of the Immaculate Conception, Washington, D.C., celebrated continuously since 1995 under the patronage of the Archdiocese for the Military Services, U.S.A. The 32nd annual celebration falls on Sunday, 17 May 2026 — Archbishop Timothy P. Broglio principal celebrant. Schedule: Confession 3:00 PM ET, Rosary 3:35 PM, Solemn Vespers 4:00 PM, Memorial Mass 4:30 PM. The Mass is offered for the eternal repose of all who died in service to the United States Armed Forces. Memorial Day is not Veterans Day; it remembers those who died in service. Catholic observance frames that sacrifice within the Mass for the dead and the Communion of Saints — Requiem aeternam dona eis, Domine, et lux perpetua luceat eis.
Where is the National Catholic Memorial Mass held?
The Annual Memorial Mass is celebrated at the Basilica of the National Shrine of the Immaculate Conception, 400 Michigan Avenue NE, Washington, D.C. — the largest Roman Catholic church in North America. It is offered each year in late May, on a Sunday ahead of the Memorial Day holiday; the 2026 celebration is Sunday, 17 May 2026, at 4:30 PM ET. Principal celebrant: Archbishop Timothy P. Broglio of the Archdiocese for the Military Services, U.S.A. The celebration has run continuously since 1995. The Mass is open to the public; no ticket is required.
Why does the Catholic Church wear red on Pentecost?
Red symbolizes the fire of the Holy Spirit that descended on the apostles at Pentecost — the tongues of fire described in Acts 2 — as well as the burning charity that the Spirit kindles in the hearts of the baptized. The same color is worn on the feasts of the martyrs because, per the Catholic Encyclopedia, red is "the language of fire and blood, indicating burning charity and the martyrs' generous sacrifice." Red is the one liturgical color in the Roman Rite that names two things at once: the fire of the Holy Spirit and the blood of the martyr.
What does Pentecost mean for Catholics?
Pentecost is the solemnity celebrated fifty days after Easter Sunday, commemorating the descent of the Holy Spirit upon the apostles and the Blessed Virgin Mary gathered in the Upper Room in Jerusalem (Acts 2:1–4). The Catholic Church calls Pentecost the birthday of the Church — the moment when the apostles, who had been hiding behind locked doors in fear, were strengthened to walk out and proclaim the Gospel boldly. Pentecost marks the close of the Easter season and the beginning of Ordinary Time. In 2026 Pentecost Sunday falls on 24 May.
What is the Holy Spirit Novena?
The Holy Spirit Novena, also called the Pentecost Novena, is the oldest novena in the Catholic Church — prayed in the nine days between the Solemnity of the Ascension and Pentecost Sunday. It follows the example of the apostles and the Blessed Virgin Mary, who prayed for nine days in the Upper Room awaiting the descent of the Holy Spirit. Each day petitions one of the seven gifts of the Holy Spirit drawn from Isaiah 11:2–3: wisdom, understanding, counsel, fortitude, knowledge, piety, and fear of the Lord.
Primary Sources
Every claim on this page traces verbatim to canonical sources. The Sanctum institutional voice synthesizes — it does not editorialize.
- Archdiocese for the Military Services, USA — official ecclesiastical jurisdiction, est. 1985 by Pope John Paul II.
- Archdiocese for the Military Services — 32nd Annual Memorial Mass announcement (2026) — institutional notice for the Sunday, 17 May 2026 Memorial Mass at the Basilica of the National Shrine, Archbishop Timothy P. Broglio principal celebrant.
- Basilica of the National Shrine of the Immaculate Conception — AMS Pilgrimage and Memorial Mass 2026 — official event page with schedule (Confession 3:00 PM ET / Rosary 3:35 / Solemn Vespers 4:00 / Memorial Mass 4:30).
- USCCB — Honoring our Military Chaplains — institutional pastoral resource on the shortage of active-duty Catholic priest chaplains and the continuing call for diocesan releases for military service.
- Pope Francis, Maiorem hac dilectionem (2017) — apostolic letter establishing the oblatio vitae ("offering of life") category for canonization.
- The Father Kapaun Guild — Diocese of Wichita — official guild promoting the cause of Venerable Father Emil Kapaun.
- Father Capodanno Guild — Archdiocese for the Military Services — official guild promoting the cause of Servant of God Father Vincent R. Capodanno.
- Medal of Honor citation — Capt. Emil J. Kapaun, US Army (awarded 11 April 2013).
- Medal of Honor citation — LT Vincent R. Capodanno, USN (awarded posthumously 1969).
- Medal of Honor citation — Maj. Charles J. Watters, US Army (awarded posthumously 1969).
- Medal of Honor citation — Cdr. Joseph T. O'Callahan, SJ, USN (awarded 1946).
- Wikipedia — Emil Kapaun (Wikidata Q379466).
- Wikipedia — Vincent Capodanno (Wikidata Q1419050).
Sources & Citations · Last reviewed: June 2026