The United States’ approval of the sale of F110 engines to Turkey for its domestically produced KAAN fighter jet, coupled with positive signals regarding Turkey’s potential re-entry into the F-35 program, has caused concern in Athens. This decision follows statements made by US President Donald Trump ahead of the NATO summit. Greek officials express worry over the implications for the regional balance of power. The engine sale is crucial for the development of the KAAN, Turkey’s fifth-generation fighter aircraft. The approval is perceived in Greece as potentially altering the military landscape. Analysts suggest this move could prompt Greece to reassess its own defense strategies and procurements. The situation is unfolding amidst existing tensions between Greece and Turkey in the Eastern Mediterranean.