On August 22, 2025, the Church celebrates the Queenship of the Blessed Virgin Mary. His Holiness Pope Leo XIV is appealing to all Catholics around the world to unite in prayer and fasting for peace on this day.
"Mary is the Mother of believers here on earth, and is also invoked as Queen of Peace, while our earth continues to be wounded by wars in the Holy Land, in Ukraine, and in many other regions of the world. I invite all the faithful to devote the day of 22 August to fasting and prayer, imploring the Lord to grant us peace and justice, and to dry the tears of those who suffer as a result of the ongoing armed conflicts. Mary, Queen of Peace, intercede so that peoples may find the path to peace."
It is up to each individual person to decide one's own particular act of prayer or fasting in one's own circumstances. For example, it might include abstaining from meat or some other foods, skipping a meal, reducing the amount of food in meals, refraining from snacking, attending Mass, praying the Rosary, spending time in Eucharistic Adoration, etc.