U.S. Navy recruits stand at attention during training at The Great Lakes Recruit Training Command in North Chicago, Illinois. More than 40,000 recruits complete eight weeks of training at the facility every year. The base, which opened in 1911, was the first and is the only remaining U.S. Navy boot camp. (Scott Olson/Getty Images)

Economy, War and Military Recruiting

U.S. Navy recruits stand at attention during training at The Great Lakes Recruit Training Command in North Chicago, Illinois. More than 40,000 recruits complete eight weeks of training at the facility every year. The base, which opened in 1911, was the first and is the only remaining U.S. Navy boot camp.

Credit: Scott Olson/Getty Images