"Hard work and training. There's no secret formula." -Ronnie Coleman The United States Army Drill Team Soldiers are masters of drill and ceremony -- 100% precision and one-handed! #ArmyHeritage | #FixBayonets | U.S. Army

#TBT: Go back in time with #USArmy Soldiers putting in hard work at basic training. What was your biggest challenge when you went through basic training? | U.S. Army

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