Congressional appropriators this week agreed to put $100 million toward the early stages of the Air Force’s O/A-X light-attack aircraft procurement program, after the Senate proposed three times as much money but the House offered none. The funds will buy aircraft and long-lead materials, according to the joint congressional spending bill released Thursday, although the Air Force has neither finalized its acquisition strategy nor publicized how many aircraft it plans to purchase. The appropriations agreement is expected to pass by...