Following the shootdown of the Russian Sukhoi Su-24 over the Syria – Turkey border in November 2015 and the rise of Russo-Turkish tensions , members of the Communist Party of Russia proposed annulling the Treaty of Moscow . Initially , the Russian Foreign Ministry considered this action in order to send a political message to the government of Turkish President Recep Tayyip Erdoğan . However , Moscow ultimately decided against it in its effort to de-escalate tensions with Ankara
shootdown of the Russian Sukhoi Su-24
2015 Russian Sukhoi Su-24 shootdown
Treaty of Moscow (1921)