From the Vatican:
The Pope is formally inviting every Catholic Bishop around the world to join him on Friday, 25 March, to pray a “solemn Act of Consecration of humanity, and Russia and Ukraine in particular, to the Immaculate Heart of Mary.”
Pope Francis made the appeal in a letter sent on Wednesday to all Bishops.
In his letter, the Pope lamented the “immense suffering” the war in Ukraine is inflicting upon its “sorely tried people” and which is “threatening world peace.”
Invoke peace for Ukraine
The Pope expressed his gratitude to the many Catholics who have responded “with great generosity to my appeals for prayer, fasting, and charity.”
He said his decision to perform the Act of Consecration for the nations at war came partly in response to the “numerous requests by the People of God.”