The consecration of Russia to the Immaculate Heart of Mary by a reigning pope was requested during a Marian apparition by Our Lady of Fátima on 13 July 1917, according to Lúcia dos Santos (Sister Lúcia), one of the three visionaries who claimed to have seen the apparition. Sister Lucia said that at different times the Blessed Virgin Mary had given her a message of promise that the consecration of Russia to the Immaculate Heart of Mary would usher in a period of world peace.
Popes Pius XII, Paul VI and John Paul II all consecrated Russia to the Immaculate Heart of Mary, although without specifically referencing Russia or the USSR. On March 25, 2022, Pope Francis consecrated Russia to the Immaculate Heart of Mary, alongside Ukraine, with both countries mentioned for the first time. This occurred during the Russian invasion of Ukraine.[1]