title: Can Turkey legally close the passage through Turkish Straits for Russian warships due to Russian military aggression against Ukraine?
abstract: Russian military aggression against Ukraine has completely changed the security situation in the Black Sea region. Turkish Straits, that on the basis of UNCLOS are considered to be the straits used for international navigation, have become the most vital maritime route for Russian warships entering the Black Sea, where afterwards they are engaged in the military activities, for instance attacks on Ukrainian territory. Ukrainian authorities were the first, who raised the issue of the passage of R