An A-10 Thunderbolt II assigned to the 124th Fighter Wing approaches a KC-135 Stratotanker assigned to the 191st Air Refueling Squadron during an aerial refueling mission over Idaho, March 18, 2021. With upgrades and wing replacements, the A-10’s service life could be extended to 2040. As of 2017 it has no planned retirement date. (U.S. Air Force photo by Airman 1st Class Cole Yardley)