Obstacle courses are an essential part of Army training, but how does it all get built? Hear from the Technical Engineers (12T) who work hard to make sure these tall training obstacles stay secured while in action. Ready to build your Army career? https://go.usa.gov/xz9xP. | GoArmy

Before they train Army recruits at basic training, drill sergeants must graduate from the nine-week United States Army Drill Sergeant Academy. Insider spent a week at Fort Jackson in Columbia, South Carolina, to see what it takes to become a drill sergeant. The Drill Sergeant Academy has adopted a new strategy where the old days of breaking down recruits with yelling and push-ups have been replaced with a more collaborative and respectful tone. Drill sergeant candidates are taught how to effecti