On April 10th, Pope Leo XIV posted on Twitter/X, “God does not bless any conflict. Anyone who is a disciple of Christ, the Prince of Peace, is never on the side of those who once wielded the sword and today drop bombs. Military action will not create space for freedom or times of #Peace, which comes only from the patient promotion of coexistence and dialogue among peoples.”
The Pope’s condemnation of war drew the ire of the self-proclaimed “Peace President” and his allies. On TruthSocial, President Trump described the Pope as “Weak on Crime, Weak on Nuclear Weapons” and “terrible for Foreign Policy.” At a Turning Point USA event, Vice President J.D. Vance remarked, “When the pope says that God is never on the side of people who wield the sword, there is more than a 1,000-year tradition of just war theory.” Speaker of the House Mike Johnson was likewise “taken a little bit aback.” He told reporters, “It’s a very well-settled matter of Christian theology. There’s something called the just war doctrine.”
Yet just war is precisely the Pope’s point. As Bishop James Massa, the chairman of the US Conference of Catholic Bishops’ Committee on Doctrine, said in a statement:
“For over a thousand years, the Catholic Church has taught just war theory and it is that long tradition the Holy Father carefully references in his comments on war. A constant tenet of that thousand-year tradition is a nation can only legitimately take up the sword ‘in self-defense, once all peace efforts have failed’ (Catechism of the Catholic Church, no. 2308). That is, to be a just war it must be a defense against another who actively wages war, which is what the Holy Father actually said: ‘He does not listen to the prayers of those who wage war.’
Ultimately, this appeal to Just War Theory by Vance and Johnson is a desperate retort from a historically sinful administration. To date, Trump has authorized military strikes in 10 countries: Afghanistan, Iraq, Yemen, Pakistan, Somalia, Libya, Syria, Venezuela, Nigeria, and Iran. Currently, the Pentagon is reportedly preparing for military action against Cuba – a nation that Trump has repeatedly threatened to “take.” This invasion would come months after the Trump administration imposed a total oil blockade that is causing widespread suffering and starvation there. No interpretation of Just War Theory would ever justify such rampant and senseless violence.