109 In the meantime however, Venerable Brethren, the world and all those who are stricken by the calamity of the war must know that the obligation of Christian love, the very foundation of the Kingdom of Christ, is not an empty word, but a living reality. A vast field opens up for Christian Charity in all its forms. We have full confidence that all Our sons, especially those who are not being tried by the scourge of war, will be mindful in imitation of the Divine Samaritan, of all these who, as victims of the war, have a right to compassion and help.
Source: Summi Pontificatus (Vatican.va)