The End is Near for the A-10 Warthog
For nearly five decades, the Fairchild A-10 Thunderbolt II has operated out of Davis-Monthan Air Force Base (AFB), Arizona, but its aging fleet of ground attack aircraft has begun to make their final flights. The first A-10 arrived at the base in March 1976, and the entire force of Thunderbolt IIs is on track to be retired by the end of the decade.
Source: nationalinterest.org