sentences:  He returned to the United States (celebrating his first Mass in the States at the Cathedral of Saint Matthew the Apostle in Washington, D.C. on June 16, 1940), and spent the next two years as a curate (assistant pastor, or parochial vicar) at St. Thomas Aquinas Church in Baltimore, Maryland.After the attack on Pearl Harbor and the United States' entry into World War II, Father Hannan was commissioned in the United States Army, where he served as a chaplain to the 82nd Airborne Division.Joining the 82nd in Belgium, he ministered to the paratroopers during the Ardennes Offensive.