Operation Credible Sport was a joint project of the U.S. military in the second half of 1980 to prepare for a second rescue attempt of the hostages held in Iran. It was canceled after the hostages were released on 20 January 1981 and, for a short while, it looked as if the task force would be disbanded and the personnel returned to their former units. However, the Army decided that it would be more prudent to keep the unit. The task force, which had been designated Task Force 158, was soon formed into the 160th Aviation Battalion. The OH-6A helicopters used for transporting personnel became the MH-6 aircraft of the Light Assault Company and the armed OH-6As became the AH-6 aircraft of the Light Attack Company.