Twenty young Americans raised their hands and became soldiers during a ceremony at Citizens Bank Park Stadium in Philadelphia, Pa., shortly before the Philadelphia Phillies beat the Chicago Cubs 7 to 4.Under Secretary of the Army Brad R. Carson read the oath of enlistment to the new soldiers as part of the many celebrations held around the globe celebrating the 239th birthday of the United States Army.Members of the U.S. Army Drill Team Soloists and the Continental Color Guard from the 3rd U.S. Infantry Regiment (The Old Guard), performed in front of thousands of fans at the game after the enlistment ceremony.Carson, who was seen on the screen administering the oath, also participated in a cake cutting ceremony at Independence Hall in the historic district of Philadelphia earlier that day.This ceremony included along with performances by the 3rd U.S. Infantry Regiment (The Old Guard) and The United States Army Band, "Pershing’s Own," both from Fort Myer, Va.