Question: How many regions does the institution that authorized giving troops the ability to follow the North Korean forces north recognize in the continent where Chelyabinsk is located?

<P0-S0> MacArthur made a statement demanding the KPA's unconditional surrender. <P0-S1> By 1 October 1950, the UN Command repelled the KPA northwards past the 38th parallel; the ROK Army crossed after them, into North Korea. <P0-S2> Six days later, on 7 October, with UN authorization, the UN Command forces followed the ROK forces northwards. <P0-S3> The X Corps landed at Wonsan (in southeastern North Korea) and Riwon (in northeastern North Korea), already captured by ROK forces. <P0-S4> The Eighth U.S. Army and the ROK Army drove up western Korea and captured Pyongyang city, the North Korean capital, on 19 October 1950. <P0-S5> The 187th Airborne Regimental Combat Team ("Rakkasans") made their first of two combat jumps during the Korean War on 20 October 1950 at Sunchon and Sukchon. <P0-S6> The missions of the 187th were to cut the road north going to China, preventing North Korean leaders from escaping from Pyongyang; and to rescue American prisoners of war. <P0-S7> At month's end, UN forces held 135,000 KPA prisoners of war. <P0-S8> As they neared the Sino-Korean border, the UN forces in the west were divided from those in the east by 50–100 miles of mountainous terrain. <SEP> <P1-S0> the African Group, with 54 member states the Asia - Pacific Group, with 53 member states the Eastern European Group, with 23 member states the Latin American and Caribbean Group (GRULAC), with 33 member states the Western European and Others Group (WEOG), with 28 member states, plus 1 member state (the United States) as an observer state. <SEP> <P2-S0> Chelyabinsk () is a city and the administrative center of Chelyabinsk Oblast, Russia, located in the northeast of the oblast, south of Yekaterinburg, just to the east of the Ural Mountains, on the Miass River, on the border of Europe and Asia. <P2-S1> Population: <SEP> <P3-S0> the first battle the americans entered in the korean war was the battle of osan, where about four hundred strong landed in pusan airport on the first of july. <P3-S1> the american troops were sent off to taejon the next morning where major general john h. church the head of u.s. field headquarters was confident in the us troop's strengths to push back the north koreans. <P3-S2> on july fifth the troops were finally put to the test when north korean tanks crept towards osan. <P3-S3> the four hundred infantryman of the u.s. also called task force smith opened fire on the north koreans at 8: 16 am. <P3-S4> only four of the north korean tanks were destroyed and twenty - nine kept moving forward breaking the us line. <P3-S5> at the end of the battle only two more north korean tanks and two regiments of north korean infantry were destroyed. <P3-S6> the us had lost the battle, revealing that the mere sight of us troops would not reverse the military balance in korea. <P3-S7> by early august, the north korean troops had pushed back the us and south korean troops all the way to naktong river, which is located about thirty miles from pusan. <P3-S8> the two weeks of fighting following this resulted in the most casualties of us troops than any other equivalent period of this war. <P3-S9> however, during this time the us pushed supplies and personnel to korea and by the end of july south koreans and us troops outnumbered the north koreans, although the north had pushed back the us and south by an amazing amount the north had suffered over fifty thousand casualties. <P3-S10> also because north koreas supply lines were so lengthy and with the us in control of the water and air replenishing there losses were slow. <SEP> <P4-S0> on 30 september, zhou enlai warned the united states that china was prepared to intervene in korea if the united states crossed the 38th parallel. <P4-S1> zhou attempted to advise north korean commanders on how to conduct a general withdrawal by using the same tactics which had allowed chinese communist forces to successfully escape chiang kai-shek's encirclement campaigns in the 1930s, but by some accounts north korean commanders did not utilize these tactics effectively. <P4-S2> historian bruce cumings argues, however, the kpa's rapid withdrawal was strategic, with troops melting into the mountains from where they could launch guerrilla raids on the un forces spread out on the coasts.