Zhang Hanhui, China's ambassador to Moscow, touted his country's close relationship with Russia and accused the U.S. of being responsible for the "Ukrainian crisis" in an interview Wednesday with the Russian state-owned news agency Tass. "As the architect and main instigator of the Ukrainian crisis, Washington, while imposing unprecedented comprehensive sanctions on Russia, continues to supply arms and military equipment to Ukraine," Zhang told the Russian news agency. "Its ultimate aim is to exhaust and ruin Russia with a long war and a sanction stick." Putin launched an invasion of Ukraine on Feb.