US Secretary of State Marco Rubio addresses Aegean tensions and energy projects in Athens

During a visit to Athens in early October 2026, U.S. Secretary of State Marco Rubio underscored the importance of regional stability in the Eastern Mediterranean. In an interview with the Greek newspaper Kathimerini, Rubio characterized the prospect of a military conflict between NATO allies Greece and Turkey as "unthinkable," asserting that the United States would use its diplomatic influence to prevent any such crisis from occurring.

Regarding the Great Sea Interconnector (GSI) project, which aims to link the power grids of Greece, Cyprus, and Israel, Rubio confirmed Washington’s support for the infrastructure as a strategic priority for energy diversification. He signaled that the U.S. intends to intervene behind the scenes to resolve any obstacles facing the project. Meanwhile, regarding Turkey’s request for F-35 fighter jets, Rubio clarified that U.S. law prevents the transfer of the aircraft until the dispute over Turkey’s purchase of Russian S-400 missile systems is fully resolved.

Diplomatic sources in Athens indicate that the project is moving forward, with Greece expected to issue a NAVTEX in the coming days to facilitate surveys by French vessels. The U.S. stance is widely seen as a reinforcement of the strategic partnership between Washington, Athens, and Nicosia, aimed at securing energy routes in the region.