4 But you know what gifts, what resources, what consolations we need most in these critical times. In the first place we must ask most humbly that minds and souls be illumined and renewed by the precepts of Christian doctrine, for from them alone private and public salvation must be awaited. Secondly, that the internecine strife of peoples and nations cease to rage and that all classes of citizens, joined in a friendly pact, strive peacefully to build from the heaped up piles of rubble - under the auspices of justice and charity - a new building for the human community. But something more must be sought from the divine Redeemer and His most holy Mother by prayer and penance. We must seek a true and sincere peace, that may quickly end this calamitous and bloody conflict.
Source: Communium Interpretes Dolorum (Vatican.va)