TURKEY has called Russia’s assault on Ukraine a “war” in a rhetorical shift that could pave the way for the NATO member nation to implement parts of an international pact, potentially limiting the transit of Russian warships from the Mediterranean to the Black Sea.

Kyiv had appealed to Ankara to block any more Russian ships from entering the Black Sea, from which Moscow launched an incursion on Ukraine’s southern coast. At least six Russian warships and a submarine transited Turkey’s straits this month.

“It is not a couple of air strikes now, the situation in Ukraine is officially a war… We will implement the Montreux Convention,” Mevlut Cavusoglu, Turkey’s foreign minister, said in an interview with broadcaster CNN Turk on Sunday.

Balancing its Western commitments and close ties to Moscow, Ankara has in recent days called the Russian attack unacceptable but until Sunday had not described the situation in Ukraine as a war.

Montreux Convention

The rhetorical shift allows Turkey to enact the articles of the 1936 Montreux Convention that permits it to limit naval transit of its Dardanelles and Bosphorus straits during wartime, or if threatened.

Yet Cavusoglu reiterated that Turkey cannot block all Russian warships accessing the Black Sea due to a clause in the pact exempting those returning to their registered base.

“There should not be any abuse of this exemption. Ships that declare returning to their bases and passing through the straits should not be involved in the war,” Cavusoglu said.