Putin humiliation as country quits 'Russian NATO' - and wants to join EU instead

Vladimir Putin left humiliated as former ally says it's quitting 'Russian NATO'

Armenia has signalled it could quit the Collective Security Treaty Organization (CSTO), a security bloc seen as Moscow's version of NATO, after a peace treaty with Azerbaijan

Putin humiliation as country quits 'Russian NATO' - and wants to join EU instead

Russia views the CSTO as a counterbalance to NATO and an important element of its own security.