The A-Team was first formed during the Vietnam War as a highly trained crack commando unit. One day they were given a mission that they thought would end the war. Actually, this mission turned out to be a set up, as the Vietcong had paid off a US military officer to embarrass the United States. This mission was to rob a bank in Hanoi. As usual, the team succeeded. However, when the returned to base they found that the Vietcong and blown the tar out it, killing the only military officer that could have testified that the A-Team was acting on a military order.
The A-Team was then sent back to the US to stand trial, and they were sent to prison by a military court for a crime they didn't commit.
You can check out the details on the Court Martial Trial for more information.
