Question: Which two forces have come to the aid of South Korea during The Korean War and, especially, The Battle of Pyongyang?

 Following the Battle of Inchon, the UN forces recaptured Seoul, the capital of South Korea, and proceeded to north of the 38th parallel.  Shortly after advancing north, the American and South Korean forces faced the North Korean defensive near Pyongyang, the capital of North Korea, on October 17. The Battle of Pyongyang (17–19 October 1950) was one of the major battles of the United Nations and South Korean offensive during the Korean War.  Since North Korea's leadership and its main forces had already withdrawn to Kanggye, the allied forces soon captured Pyongyang on October 19. The battle was followed by an airborne assault by the U.S. 187th Infantry Regiment 40km north of Pyongyang, with the intention of cutting off North Korean units retreating from the city. <SEP> New Zealand–North Korea relations (Korean:뉴질랜드-조선민주주의인민공화국 관계) refers to international relations between New Zealand and North Korea.  Relations between the two countries have been almost non-existent since the division of Korea.  During the Korean War in the 1950s, New Zealand troops fought as part of the United Nations force that repelled the North Korean invasion of South Korea.  Since then, New Zealand and North Korea have had little contact, until July 2000 when North Korean Foreign Minister Paek Nam-sun and New Zealand Minister of Foreign Affairs Phil Goff met in Bangkok, leading to the establishment of diplomatic relations in March 2001.  The New Zealand ambassador to South Korea based in Seoul is also cross-accredited to North Korea.  In 2006, North Korea tested its first nuclear weapon, drawing criticism and suspension of relations by the New Zealand government, which holds a staunch anti-nuclear policy.  New Zealand began re-establishing formal relations in 2007, when the New Zealand Minister of Foreign Affairs Winston Peters visited Pyongyang on November 20 to discuss possible political and economic deals with North Korea, on the basis that it start dismantling its nuclear weapons facilities. <SEP> The Battle of Yongju (21–22 October 1950), also known as the Battle of the Apple Orchard, took place as part of the United Nations (UN) offensive towards the Yalu River, against the North Korean forces which had invaded South Korea during the Korean War.  The battle was fought between the 27th British Commonwealth Brigade and the North Korean 239th Regiment which was encircled east of Yongju, where it was attacking the US 187th Airborne Regimental Combat Team (US 187 RCT).  On 20 October US 187 RCT had parachuted ahead of the advancing UN spearheads into drop zones in Sukchon and Sunchon, 40 km north of the capital Pyongyang, with the objectives of cutting off the retreating North Korean forces that were withdrawing up the west coast of the Korean Peninsula and releasing American and South Korean prisoners of war.  Although the airborne drop itself was a success, the operation came too late to intercept any significant North Korean elements and the American landings initially met little resistance.  However, on 21 October as US 187 RCT began to advance south to the clear the Sukchon to Yongju road towards Pyongyang the Americans came under heavy attack from the North Korean 239th Regiment, and requested assistance. <SEP> The Korean War (in South Korean Hangul: 한국전쟁 ; Hanja: 韓國戰爭 ; RR: "Hanguk Jeonjaeng " , "Korean War"; in North Korean Chosŏn'gŭl: 조국해방전쟁 ; Hancha: 祖國解放戰爭 ; MR: "Choguk haebang chǒnjaeng " , "Fatherland Liberation War"; 25 June 1950 – 27 July 1953) was a war between North Korea (with the support of China and the Soviet Union) and South Korea (with the principal support of the United States).  The war began on 25 June 1950 when North Korea invaded South Korea.  China came to the aid of North Korea, and the Soviet Union also gave some assistance to the North.  The United Nations, with the United States as the principal force, came to the aid of South Korea.