Choe Ryong Hae meets with Russia's President Vladimir Putin in Moscow in this November 18, 2014 photo released by North Korea's KCNARussian President Vladimir Putin called on Wednesday for deeper ties with North Korea to improve regional security, a day after holding talks with a personal envoy of North Korean leader Kim Jong Un. Senior North Korean officials visit Moscow infrequently but the isolated country is trying to counter a U.N. resolution urging Pyongyang’s referral to the International Criminal Court for alleged crimes against humanity. Russia is also one of five countries involved in talks with North Korea on its nuclear program. The others are South Korea, China, the United States and Japan. More