comment: >
  
  Correct me if I'm wrong, but the Montreux Convention prevents warships of the countries at war from crossing the Bosphorus and Dardanelles Straits. Under peacetime conditions, warships are allowed to cross under certain conditions and provided it's approved by Turkey.
  So couldn't the US argue that since it's not at war with either Ukraine or Russia and be allowed to cross?
context: Tl;dr Passage of warships is still denied to everyone so the US warship is visiting the bosphorus without crossing