“While deaths from aerial interceptions over the Aegean are uncommon, violations of Greek airspace by Turkish aircraft happen with some frequency. Earlier this month, Greek troops fired tracer rounds at a Turkish helicopter that flew over the island of Ro with its navigation lights switched off. The Greek military recorded 1,671 violations of its airspace by Turkish jets in 2016. To put that in perspective, NATO jets were scrambled 780 times to intercept Russian aircraft, the highest level since the Cold War.”
Source: The ‘Secret’ Dogfights Above The Aegean Sea We Rarely Hear About