Arma Christi is a documentary film which explores the spiritual side of the Ukrainian resistance. Since February 24th 2022, when the Russian full scale invasion started, Ukrainians have expressed their faith in themselves through prayer, art, or action. How does faith feed the huge resistance movement that has been active in the whole country ? How the long history of dissent of the Christian Churches of Ukraine helps fight today's battles ? Prominent artists and thinkers, as well as direct witnesses of the conflict speak about their relationship to the Gospel and the original path it proposes: "Love your enemies..." What specific weapons Jesus Christ gave his friends in time of conflict ? The film is a meditation on how love can still wins when wounds and destruction seem to prevent it.