In April 2018, John X of Antioch, together with Moran Mor Ignatius Aphrem II and Greek Melkite Patriarch Youssef Absi, issued a strong condemnation of the 2018 missile strikes against Syria. They said the bombing "were clear violation of the international laws and the UN Charter", and that the "unjust aggression encourages the terrorist organizations and gives them momentum to continue in their terrorism."