The joint defence agreement signed in Mecca by Türkiye, Saudi Arabia and Pakistan and the Greek–Israeli contract for the integrated „Achilles Shield” air defence system appear to belong to separate files, yet they describe the same transformation: the states of the Eastern Mediterranean no longer rely on a single alliance, but build several layers of security at once. The analysis examines Türkiye’s position as an actor able to operate simultaneously within NATO, in the Gulf and across the Mediterranean, Greece’s strategy of deliberately fragmenting its strategic dependencies, the sensitivity of the Syrian file, and the real limits of the Mecca mechanism. The conclusion is not that conflict is imminent, but that the distance between deterrence architectures — and with it, reaction time — is growing shorter.