Open waters
The mighty Bosphorus is Istanbul’s lifeline to the world but it can also be something of a liability. Over the summer, those taking a waterside stroll would often see gargantuan warships bearing Russia’s ensign sailing to the Mediterranean and the Syrian port Tartus. Photographs surfaced over the weekend that appear to show a Russian soldier holding a rocket launcher on a warship in the Bosphorus, which has been taken as a provocation in Ankara. But could Turkey ever close the strait? The Montreux Convention, signed in 1936, safeguards the free passage of warships by Black Sea nations; as custodian of the Bosphorus, Turkey is bound to let the Russians through. Any other action would be a breach of the treaty – and disastrous.