We got an inside look at the United States Navy's 10-week basic training program. Chief video correspondent Graham Flanagan spent five days inside Recruit Training Command Great Lakes, where he observed different companies at various stages of training at the facility located about 35 miles north of Chicago.br Recruits must pass a physical assessment and a swim qualification before they train in seamanship, firefighting, and weapons training. They're also exposed to tear gas inside a confidence chamber where they learn to correctly wear gas masks.br Training culminates with “Battle Stations” an all-night event that takes place on a mock Navy destroyer ship designed by companies who have created theme park attractions for Walt Disney World. After completing the event, recruits officially become sailors when they receive their US Navy ball caps.