– Naval News – The Russian Navy’s Black Sea Fleet can now deploy its submarines to the Mediterranean. This is despite an international treaty which many thought would prevent it. The Montreux Convention, agreed in 1936, prohibits submarines from passing through the Bosporus Strait, which connects the Black Sea to the Mediterranean. There are exceptions in the treaty for special cases for Black Sea nations: delivery of new submarines to the Black Sea, and exits for repairs. Russia is now routinely using these clauses to reestablish a permanent submarine presence in the Mediterranean. This is changing the balance of power there.