The archbishop responsible for Catholic ministry to U.S. service members has publicly questioned whether an American war with Iran could meet the moral standards of Catholic teaching, pointing instead to diplomacy.
Speaking April 2 on CBS News’ Face the Nation (the interview will be aired on April 5), Archbishop Timothy Broglio said the current conflict would not appear justified under the Church’s just war framework, even with acknowledging concerns about nuclear threats.
“I would think under the just war theory, it is not,” Archbishop Broglio said. He explained that while Iran’s nuclear ambitions present a real concern, military action in this case risks addressing “a threat before the threat is actually realized.”
His comments place him among the number of Catholic voices urging restraint in a moment of rising geopolitical tension. As head of the Archdiocese for the Military Services, Archbishop Broglio occupies a unique role: shepherding Catholics in uniform while also seeking to apply the Church’s moral teaching to questions of war and peace.
The Catechism of the Catholic Church outlines strict conditions for the use of military force, including that the damage inflicted by an aggressor must be lasting, grave, and certain, and that all other means of resolving the conflict must have been exhausted. Preventive war — acting before an attack occurs — has long been viewed with caution in Catholic moral theology.
Archbishop Broglio underscored that caution in his remarks, suggesting that the present situation does not meet those criteria. His reasoning aligns with longstanding Church concerns about pre-emptive military action, especially when based on potential or developing threats rather than imminent harm.
He also explicitly aligned himself with the diplomatic appeals of Pope Leo XIV, who in recent weeks has urged negotiation over escalation.
“I would line myself up with Pope Leo, who has been urging for negotiation,” Archbishop Broglio said.
That emphasis reflects a consistent theme in modern papal teaching, which has increasingly stressed dialogue, international cooperation, and the avoidance of armed conflict wherever possible. The changing nature of war in modern times is reflected in their teachings.
In recent decades, popes have repeatedly warned against the human and moral costs of war, particularly in regions already marked by instability, and the reality of nuclear war, something unimagined in earlier centuries.
Archbishop Broglio did not dismiss the seriousness of the geopolitical situation. Rather, his comments highlight a tension familiar to Catholic ethicists: how to respond to real threats without abandoning moral principles that safeguard human dignity on all sides, and limit the use of force.
The archbishop has already spoken out about the plight US military members face, as he commented earlier on the tensions over Greenland (see article below).
For Catholics serving in the military — many of whom look to the archbishop for guidance — such questions are not abstract. They touch directly on conscience, duty, and the challenge of reconciling national service with the demands of faith.
