Korea, officially known as the Korean Peninsula, is a region in East Asia. This country has been divided into two sovereign states, i.e. North Korea and South Korea. It consists of the mainland Korea, Jeju Island and several minor islands near the peninsula. The country shares its borders with China, Russia, Japan, Korea Strait and the Sea of Japan. In 1945, superpowers like Russia and the USA agreed on the surrender of the Japanese forces in Korea after the World War II, hence leading to the partition of Korea. The Northern part of Korea was under the influence of the Soviet Union and the Southern part was under the control of the USA. Since communism was favoured in Russia, the communist-inspired leadership in North Korea was further encouraged by the Soviet Union which was opposite to the pro-western leadership brought in by the USA in South Korea. This led to Korea becoming two distinct entities, i.e. North Korea and South Korea. Growing unrest between these two entities led to the Korean War in 1950. However, the war ended without having a formal peace treaty. Due to this, tension continues to exist between these two parts of Korea.