it is also prohibits true aircraft carriers, i.e. basically the ships having catapults, at the insistence of USSR. https://www.globalsecurity.org/military/worl

it is also prohibits true aircraft carriers, i.e. basically the ships having catapults, at the insistence of USSR. https://www.globalsecurity.org/military/world/naval-arms-control-1936.htm https://www.globalsecurity.org/military/world/naval-arms-con... >The Turkish Straits and the Montreux Convention, which once served primarily to protect the Soviet Union from superior hostile fleets, now also seem to have limited what would otherwise be a major Soviet advantage: proximity of a large fleet and its bases to a major theater of crisis and potential war. In this respect the Montreux Convention was a potential problem for the Soviets since 1964, when they began maintaining a permanent naval presence in the Mediterranean.