Roman Catholic pilgrims hold palm branches during the Palm Sunday procession at the Church of the Holy Sepulchre in Jerusalem's Old City on March 25, 2018. The ceremony is a landmark in the Roman Catholic calendar, marking the triumphant return of Christ to Jerusalem the week before his death, when a cheering crowd greeted him waving palm leaves. Palm Sunday marks the start of the most solemn week in the Christian calendar. / AFP PHOTO / GALI TIBBON