ISTANBUL North Korean leader Kim Jong Un has vowed to "honestly implement" the Treaty on Comprehensive Strategic Partnership with Russia, the state-run Korean Central News Agency (KCNA) reported on Wednesday. Kim made the pledge during his meeting with Russian security chief Sergey Shoygu in Pyongyang on Tuesday. Pyongyang will "invariably and unconditionally support" Russia to defend its sovereignty, territorial integrity, and international justice against the "imperialist moves of hegemony,"