U.S. Army Chap. (Capt.) Craig Ludwig, 633rd Air Base Wing chaplain, plays his guitar and sings “Great is thy Faithfulness” during the National Day of Prayer celebration at the Regimental Memorial Chapel at Fort Eustis, Va., May 3, 2012. U.S. Army Chap. (Col.) Kenneth Bush, 633rd ABW deputy chaplain, said the event “is a reminder for us not to do this once a year, but to gather together and encourage each other to do it throughout the year.” (U.S. Air Force photo by Senior Airman John D. Strong II/Released)