A Department of Defense Inspector General report estimates that the "Operation Epic Fury" campaign against Iran incurred $33.4 billion in costs from late February to the end of June, with $22.3 billion allocated to munitions. The report attributes emerging strategic inventory shortfalls to these expenditures and cites retaliatory strikes that allegedly destroyed several aircraft, including four F-15Es and up to 30 MQ-9 drones, and damaged an F-35A.