Oil for Troops: Russia's Barter System with North Korea Exposed

South Korea has said that in return for sending thousands of troops to assist Russia in fighting Ukraine, North Korea has received missiles from Moscow, along with other defense equipment. South Korea’s national security adviser Shin Won-sik was asked by a reporter Friday what Pyongyang stands to gain from deploying an estimated 10,000 troops to Russia, to which he responded: "It is understood that North Korea has been provided with related equipment and anti-aircraft missiles to strengthen Pyongyang's weak air defense system." Central Pyongyang,…