File photo of portraits of former leader Kim Jong-il and former president Kim Il-sung inside a North Korean flagged ship "Chong Chon Gang" docked at Manzanillo Container Terminal in Colon City Thomson Reuters By Ju-min Park SEOUL (Reuters) - From building statues and training police in Africa to trading with India and Thailand, North Korea is managing to maintain business ties and friendly diplomatic relations with a dwindling number of Cold War-era friends. That is despite being cut off from much of the world for conducting a decade of banned rocket and nuclear tests, including the launch of a rocket last weekend that North Korea says put a satellite into space. The United States and its allies saw the launch as a missile test. Indeed, Pyongyang has been squeezed by layers of U.N. sanctions since 2006 targeting its once-lucrative arms trade and the flow of money that financed its weapons program. China, North Korea's most important ally, as well as Russia have signed up to U.N. Security Council sanctions over the missile and nuclear tests.