Six advanced Rafale jets purchased from the French air force on Wednesday flew in low formation over Athens before their official handover to the Greek armed forces at a nearby air base.

The multirole combat aircraft with a distinctive triangle-shaped wing were the first major delivery to result from multi-billion-euro defense deals the Greek and French governments sealed last year.

Greece has earmarked nearly 2.5 billion euros ($2.8 billion) to buy 18 Rafale jets, 12 from the French air force and six newly built by Paris-based military contractor Dassault.

Greece also plans to acquire six more Rafale jets at a later date and to spend an additional 3 billion euros to buy three new French-made frigates.

NATO allies Greece and Turkey have longstanding disagreements over boundaries and oil and gas drilling rights in the Eastern Mediterranean, a dispute that flared into a tense naval stand off in 2020.

Turkey and Greece mount competing air force patrols in the eastern Aegean Sea around Greek islands facing Turkey’s coastline. The tensions in the region prompted Athens to speed up its military upgrade program and strengthen defense ties with allies France and the United States.

Michael Tanchum, a senior fellow at the Austrian Institute for European and Security Policy, said Greece had also developed military cooperation with Egypt, Israel, the United Arab Emirates and Saudi Arabia.

"Athens’ efforts are paying off big ... These relationships provide Greece with much needed strategic depth," Tanchum said.

The delivery of the French jets to Greece will be completed in January 2025, military officials said.

Greek officials say the Rafale jets have advanced electronics and weapons systems that will give its air force an advantage while confronting Turkey’s much larger military.

Turkey’s air force modernization drive suffered a setback in 2019 when the United States dropped Turkey from its F-35 program over Ankara's purchase of the Russian-made S-400 missile defense system.