The Boeing F-15EX Eagle II is an American multirole fighter derived from the McDonnell Douglas F-15E Strike Eagle. The aircraft resulted from U.S. Department of Defense (DoD) studies in 2018 to recapitalize the United States Air Force's (USAF) tactical aviation fleet that was aging due to curtailed modernization, particularly the truncated F-22 production, from post-Cold War budget cuts. The F-15EX is a variant of the F-15 Advanced Eagle, a further development of the F-15E design initially intended for export and incorporates improved internal structure, flight control system, and avionics. The aircraft is manufactured by Boeing's St. Louis division (formerly McDonnell Douglas).
