VATICAN CITY — As the Catholic Church celebrated World Peace Day Jan. 1, Pope Francis offered prayers for the people of war-torn Yemen, especially the nation’s children left without education and often without food by years of civil war. Reciting the Angelus from the library of the Apostolic Palace, the pope made no mention of the sciatica pain that had forced him to miss an evening prayer service Dec. 31 and the morning Mass Jan. 1 for the feast of Mary, Mother of God. With Italy on a severe lockdown to slow the spread of the coronavirus pandemic over the holidays and with rain falling on a mostly empty St. Peter’s Square, the pope livestreamed his Angelus address and prayer…