Aftermath of World War II The Aftermath of World War II was the beginning of a new era . It was defined by the decline of the old great power s and the rise of two superpowers ; the Soviet Union ( USSR ) and the United States of America ( US ) creating a bipolar world . Temporarily allied during World War II , the US and the USSR became competitors on the world stage and engaged in what became known as the Cold War , so called because it never boiled over into open war between the two powers but was focused on espionage , political subversion and proxy war s . Western Europe and Japan was rebuilt through the American Marshall Plan whereas Eastern Europe was in the Soviet sphere of influence and was excluded from the Marshall Plan . The world was divided into an US - led Western Bloc and a Soviet - led Eastern Bloc with some nations trying to stay out of the Cold War through the Non - Aligned Movement . The Cold War also saw a nuclear arms race between the two superpowers , part of the reason that the Cold War never became a " hot " war was that the USSR and the US had nuclear deterrents against each other , leading to a MAD situation . As a consequence of the war , the Allies created the United Nations , a new global organization for international cooperation and diplomacy . The United Nations agreed to outlaw wars of aggression in an attempt to avoid a third world war . The devastated great powers of Western Europe formed the European Coal and Steel Community ( that later evolved into the European Union ) in an attempt to avoid another war by economic cooperation and a common market for important natural resources . The war also increased the rate of decolonization from the weakened great powers ( Japan and Italy lost their colonies directly because they lost the war ) , with India and Indonesia becoming independent in the years immediately following the end of the conflict . Immediate effects . At the end of the war , millions of people were homeless , the European economy had collapsed , and much of the European industrial infrastructure had been destroyed . The Soviet Union , too , had been heavily affected . In response , in 1947 , U . S . Secretary of State George Marshall devised the " European Recovery Program " , which became known as the Marshall Plan . Under the plan , during 1948 - 1952 the United States government allocated US $ 13 billion ( US $ billion in 2017 dollars ) for the reconstruction of Western Europe . United Kingdom . By the end of the war , the economy of the United Kingdom was exhausted . More than a quarter of its national wealth had been spent . Until the introduction in 1941 of Lend - Lease aid from the US , the UK had been spending its assets to purchase American equipment including aircraft and ships - over £437 million on aircraft alone . Lend - lease came just before its reserves were exhausted . Britain put 55 % of its total labor force into war production . In spring 1945 , the Labour Party withdrew from the wartime coalition government , forcing a general election . Following a landslide victory , Labour held more than 60 % of the seats in the House of Commons and formed a new government on 26 July 1945 under Clement Attlee . Britain ' s war debt was described by some in the American administration as a " millstone round the neck of the British economy " . Although there were suggestions for an international conference to tackle the issue , in August 1945 the U . S . announced unexpectedly that the Lend - Lease programme was to end immediately . The abrupt withdrawal of American Lend Lease support to Britain on 2 September 1945 dealt a severe blow to the plans of the new government . It was only with the completion of the Anglo - American loan by the United States to Great Britain on 15 July 1946 that some measure of economic stability was restored . However , the loan was made primarily to support British overseas expenditure in the immediate post - war years and not to implement the Labour government ' s policies for domestic welfare reforms and the nationalisation of key industries . Although the loan was agreed on reasonable terms , its conditions included what proved to be damaging fiscal conditions for the Sterling . From 1946 - 1948 , the UK introduced bread rationing which it never did during the war . Soviet Union . The Soviet Union suffered enormous losses in the war against Germany . The Soviet population decreased by about 40 million during the war ; of these , 8 . 7 million were combat deaths . The 19 million non - combat deaths had a variety of causes : starvation in the siege of Leningrad ; conditions in German prisons and concentration camps ; mass shootings of civilians ; harsh labour in German industry ; famine and disease ; conditions in Soviet camps ; and service in German or German - controlled military units fighting the Soviet Union . The population would not return to its pre - war level for 30 years . Soviet ex - POW s and civilians repatriated from abroad were suspected of having been Nazi collaborators , and 226 , 127 of them were sent to forced labour camps after scrutiny by Soviet intelligence , NKVD . Many ex - POWs and young civilians were also conscripted to serve in the Red Army . Others worked in labour battalions to rebuild infrastructure destroyed during the war . The economy had been devastated . Roughly a quarter of the Soviet Union ' s capital resources were destroyed , and industrial and agricultural output in 1945 fell far short of pre - war levels . To help rebuild the country , the Soviet government obtained limited credits from Britain and Sweden ; it refused assistance offered by the United States under the Marshall Plan . Instead , the Soviet Union compelled Soviet - occupied Eastern Europe to supply machinery and raw materials . Germany and former Nazi satellites made reparations to the Soviet Union . The reconstruction programme emphasised heavy industry to the detriment of agriculture and consumer goods . By 1953 , steel production was twice its 1940 level , but the production of many consumer goods and foodstuffs was lower than it had been in the late 1920s . The immediate post - war period in Europe was dominated by the Soviet Union annexing , or converting into Soviet Socialist Republics , all the countries captured by the Red Army driving the German invaders out of central and eastern Europe . New Soviet satellite states rose in Poland , Bulgaria , Hungary , Czechoslovakia , Romania , Albania , and East Germany ; the last of these was created from the Soviet zone of occupation in Germany . Yugoslavia emerged as an independent Communist state allied but not aligned with the Soviet Union , owing to the independent nature of the military victory of the Partisans of Josip Broz Tito on the Yugoslav Front . The Allies established the Far Eastern Commission and Allied Council for Japan to administer their occupation of that country while the establishment Allied Control Council , administered occupied Germany . In accordance with the Potsdam Conference agreements , the Soviet Union occupied and subsequently annexed the strategic island of Sakhalin . Germany . In the west , Alsace - Lorraine was returned to France . The Sudetenland reverted to Czechoslovakia following the European Advisory Commission ' s decision to delimit German territory to be the territory it held on December 31 , 1937 . Close to one quarter of pre - war ( 1937 ) Germany was " de facto " annexed by the Allies ; roughly 10 million Germans were either expelled from this territory or not permitted to return to it if they had fled during the war . The remainder of Germany was partitioned into four zones of occupation , coordinated by the Allied Control Council . The Saar was detached and put in economic union with France in 1947 . In 1949 , the Federal Republic of Germany was created out of the Western zones . The Soviet zone became the German Democratic Republic . Germany paid reparations to the United Kingdom , France , and the Soviet Union , mainly in the form of dismantled factories , forced labour , and coal . German standard of living was to be reduced to its 1932 level . Beginning immediately after the German surrender and continuing for the next two years , the U . S . and Britain pursued an " intellectual reparations " programme to harvest all technological and scientific know - how as well as all patents in Germany . The value of these amounted to around US $ 10 billion ( US $ billion in 2017 dollars ) . In accordance with the Paris Peace Treaties , 1947 , reparations were also assessed from the countries of Italy , Romania , Hungary , Bulgaria , and Finland . U . S . policy in post - war Germany from April 1945 until July 1947 had been that no help should be given to the Germans in rebuilding their nation , save for the minimum required to mitigate starvation . The Allies ' immediate post - war " industrial disarmament " plan for Germany had been to destroy Germany ' s capability to wage war by complete or partial de - industrialization . The first industrial plan for Germany , signed in 1946 , required the destruction of 1 , 500 manufacturing plants to lower German heavy industry output to roughly 50 % of its 1938 level . Dismantling of West German industry ended in 1951 . By 1950 , equipment had been removed from 706 manufacturing plants , and steel production capacity had been reduced by 6 . 7 million tons . After lobbying by the Joint Chiefs of Staff and Generals Lucius D . Clay and George Marshall , the Truman administration accepted that economic recovery in Europe could not go forward without the reconstruction of the German industrial base on which it had previously been dependent . In July 1947 , President Truman rescinded on " national security grounds " the directive that had ordered the U . S . occupation forces to " take no steps looking toward the economic rehabilitation of Germany . " A new directive recognised that " [ a ] n orderly , prosperous Europe requires the economic contributions of a stable and productive Germany . " From mid - 1946 onwards Germany received U . S . government aid through the GARIOA programme . From 1948 onwards West Germany also became a minor beneficiary of the Marshall Plan . Volunteer organisations had initially been forbidden to send food , but in early 1946 the Council of Relief Agencies Licensed to Operate in Germany was founded . The prohibition against sending CARE Package s to individuals in Germany was rescinded on 5 June 1946 . After the German surrender , the International Red Cross was prohibited from providing aid such as food or visiting POW camps for Germans inside Germany . However , after making approaches to the Allies in the autumn of 1945 it was allowed to investigate the camps in the UK and French occupation zones of Germany , as well as to provide relief to the prisoners held there . On February 4 , 1946 , the Red Cross was permitted to visit and assist prisoners also in the U . S . occupation zone of Germany , although only with very small quantities of food . The Red Cross petitioned successfully for improvements to be made in the living conditions of German POWs . Italy . The 1947 Treaty of Peace with Italy spelled the end of the Italian colonial empire , along with other border revisions . The 1947 Paris Peace Treaties compelled Italy to pay $ 360 , 000 , 000 ( US dollars at 1938 prices ) in war reparations : $ 125 , 000 , 000 to Yugoslavia , $ 105 , 000 , 000 to Greece , $ 100 , 000 , 000 to the Soviet Union , $ 25 , 000 , 000 to Ethiopia and $ 5 , 000 , 000 to Albania . In the 1946 Italian constitutional referendum the Italian monarchy was abolished , having been associated with the deprivations of the war and the Fascist rule . Unlike in Germany and Japan , no war crimes tribunal s were held against Italian military and political leaders , though the Italian resistance summarily executed some of them ( such as Mussolini ) at the end of the war . Austria . The Federal State of Austria had been annexed by Germany in 1938 ( Anschluss , this union was banned by the Treaty of Versailles ) . Austria ( called Ostmark by the Germans ) was separated from Germany and divided into four zones of occupation . With the Austrian State Treaty , these zones reunited in 1955 to become the Republic of Austria . Japan . After the war , the Allies rescinded Japanese pre - war annexations such as Manchuria , and Korea became independent . At the Yalta Conference , U . S . President Franklin D . Roosevelt had secretly traded the Japanese Kurils and south Sakhalin to the Soviet Union in return for Soviet entry in the war with Japan . In response , the Soviet Union annexed the Kuril Islands , provoking the Kuril Islands dispute , which was ongoing as of 2012 . Hundreds of thousands of Japanese were forced to relocate to the Japanese main islands . Okinawa became a main U . S . staging point . The U . S . covered large areas of it with military bases and continued to occupy it until 1972 , years after the end of the occupation of the main islands . The bases still remain . To skirt the Geneva Convention , the Allies classified many Japanese soldiers as Japanese Surrendered Personnel instead of POWs and used them as forced labour until 1947 . The UK , France , and the Netherlands conscripted some Japanese troops to fight colonial resistances elsewhere in Asia . General Douglas MacArthur established the International Military Tribunal for the Far East . The Allies collected reparations from Japan . To further remove Japan as a potential future military threat , the Far Eastern Commission decided to de - industrialise Japan , with the goal of reducing Japanese standard of living to what prevailed between 1930 and 1934 . In the end , the de - industrialisation program in Japan was implemented to a lesser degree than the one in Germany . Japan received emergency aid from GARIOA , as did Germany . In early 1946 , the Licensed Agencies for Relief in Asia were formed and permitted to supply Japanese with food and clothes . In April 1948 the Johnston Committee Report recommended that the economy of Japan should be reconstructed due to the high cost to U . S . taxpayers of continuous emergency aid . Survivors of the atomic bombings of Hiroshima and Nagasaki , known as hibakusha ( 被爆者 ) , were ostracized by Japanese society . Japan provided no special assistance to these people until 1952 . By the 65th anniversary of the bombings , total casualties from the initial attack and later deaths reached about 270 , 000 in Hiroshima and 150 , 000 in Nagasaki . About 230 , 000 hibakusha were still alive as of 2010 , and about 2 , 200 were suffering from radiation - caused illnesses as of 2007 . Finland . In the Winter War of 1939 , the Soviet Union invaded neutral Finland and annexed some of its territory . The Finnish attempt to recover this territory during the period of the war known as the Continuation War ( 1941 – 44 ) failed . Finland retained its independence following the war but remained subject to Soviet - imposed constraints in its domestic affairs . The Baltic states . In 1940 the Soviet Union invaded and annexed the neutral Baltic states , Estonia , Latvia , and Lithuania . In June 1941 , the Soviet governments of the Baltic states carried out mass deportations of " enemies of the people " ; as a result , many treated the invading Nazis as liberators when they invaded only a week later . The Atlantic Charter promised self - determination to peoples deprived of it during the war . The British Prime Minister , Winston Churchill , argued for a weaker interpretation of the Charter to permit the Soviet Union to continue to control the Baltic states . In March 1944 the U . S . accepted Churchill ' s view that the Atlantic Charter did not apply to the Baltic states . With the return of Soviet troops at the end of the war , the Forest Brothers mounted a guerrilla war . This continued until the mid - 1950s . Population displacement . As a result of the new borders drawn by the victorious nations , large populations suddenly found themselves in hostile territory . The Soviet Union took over areas formerly controlled by Germany , Finland , Poland , and Japan . Poland received most of Germany east of the Oder - Neisse line , including the industrial regions of Silesia . The German state of the Saar was temporarily a protectorate of France but later returned to German administration . The number expelled from Germany , as set forth at Potsdam , totalled roughly 12 million , including seven million from Germany proper and three million from the Sudetenland . The Soviet Union expelled two million Poles from east of the new border approximating the Curzon Line . This border change reversed the results of the 1919 - 1920 Polish - Soviet War . Former Polish cities such as L ' vov came under control of the Ukrainian Soviet Socialist Republic . Additionally , the Soviet Union transferred more than two million people within their own borders ; these included Germans , Finns , Crimean Tatars , and Chechens . During the war , the United States government interned approximately 110 , 000 Japanese Americans and Japanese who lived along the Pacific coast of the United States in the wake of Imperial Japan ' s attack on Pearl Harbor . Canada interned approximately 22 , 000 Japanese Canadians , 14 , 000 of whom were born in Canada . After the war , some internees chose to return to Japan , while most remained in North America . Rape during occupation . In Europe . As Soviet troops marched across the Balkans , they committed rapes and robberies in Romania , Hungary , Czechoslovakia and Yugoslavia . The population of Bulgaria was largely spared this treatment , due possibly to a sense of ethnic kinship or to the leadership of Marshal Fyodor Tolbukhin . The population of Germany was treated significantly worse . Rape and murder of German civilians was as bad as , and sometimes worse than , Nazi propaganda had anticipated . Political officers encouraged Soviet troops to seek revenge and terrorise the German population . On " the basis of " Hochrechnungen " ( projections or estimations ) " , " 1 . 9 million German women altogether were raped at the end of the war by Red Army soldiers . " About one - third of all German women in Berlin were raped by Soviet forces . A substantial minority was raped multiple times . In Berlin , contemporary hospital records indicate between 95 , 000 and 130 , 000 women were raped by Soviet troops . About 10 , 000 of these women died , mostly by suicide . Over 4 . 5 million Germans fled towards the West . The Soviets initially had no rules against their troops " fraternising " with German women , but by 1947 they started to isolate their troops from the German population in an attempt to stop rape and robbery by the troops . Not all Soviet soldiers participated in these activities . Foreign reports of Soviet brutality were denounced as false . Rape , robbery , and murder were blamed on German bandits impersonating Soviet soldiers . Some justified Soviet brutality towards German civilians based on previous brutality of German troops toward Russian civilians . Until the reunification of Germany , East German histories virtually ignored the actions of Soviet troops , and Russian histories still tend to do so . Reports of mass rapes by Soviet troops were often dismissed as anti - Communist propaganda or the normal byproduct of war . Rapes also occurred under other occupation forces , though the majority were committed by Soviet troops . French Moroccan troops matched the behavior of Soviet troops when it came to rape , especially in the early occupations of Baden and Württemberg . In a letter to the editor of " TIME " published in September 1945 , an American army sergeant wrote , " Our own Army and the British Army along with ours have done their share of looting and raping . . . This offensive attitude among our troops is not at all general , but the percentage is large enough to have given our Army a pretty black name , and we too are considered an army of rapists . " Robert Lilly ’ s analysis of military records led him to conclude about 14 , 000 rapes occurred in Britain , France , and Germany at the hands of U . S . soldiers between 1942 to 1945 . Lilly assumed that only 5 % of rapes by American soldiers were reported , making 17 , 000 GI rapes a possibility , while analysts estimate that 50 % of ( ordinary peace - time ) rapes are reported . Supporting Lilly ' s lower figure is the " crucial difference " that for World War II military rapes " it was the commanding officer , not the victim , who brought charges " . German soldiers left many war children behind in nations such as France and Denmark , which were occupied for an extended period . After the war , the children and their mothers often suffered recriminations . In Norway , the “ Tyskerunger “ ( German - kids ) suffered greatly . In Japan . Mainland Japan did not experience rape or mass rape from the Allies or from American forces because the mainland was not invaded or occupied by significant enemy forces prior to Japanese surrender , which was signed on the USS Missouri . However , Allied forces , such as the Americans and the Australians , were alleged to have committed rape in Okinawa during the war and during the subsequent occupation of mainland Japan . Post - war tensions . Europe . The alliance between the Western Allies and the Soviet Union began to deteriorate even before the war was over , when Stalin , Roosevelt , and Churchill exchanged a heated correspondence over whether the Polish Government in Exile , backed by Roosevelt and Churchill , or the Provisional Government , backed by Stalin , should be recognised . Stalin won . A number of allied leaders felt that war between the United States and the Soviet Union was likely . On May 19 , 1945 , American Under - Secretary of State Joseph Grew went so far as to say that it was inevitable . On March 5 , 1946 , in his speech at Westminster College in Fulton , Missouri , Winston Churchill said " a shadow " had fallen over Europe . He described Stalin as having dropped an " Iron Curtain " between East and West . Stalin responded by charging that co - existence between Communist and capitalist systems was impossible . In mid - 1948 the Soviet Union imposed a blockade on the Western zone of occupation in Berlin . Due to the rising tension in Europe and concerns over further Soviet expansion , American planners came up with a contingency plan code - named " Operation Dropshot " in 1949 . It considered possible nuclear and conventional war with the Soviet Union and its allies in order to counter a Soviet takeover of Western Europe , the Near East and parts of Eastern Asia that they anticipated would begin around 1957 . In response , the U . S . would saturate the Soviet Union with atomic and high - explosive bombs , and then invade and occupy the country . In later years , to reduce military expenditures while countering Soviet conventional strength , President Dwight Eisenhower would adopt a strategy of massive retaliation , relying on the threat of a U . S . nuclear strike to prevent non - nuclear incursions by the Soviet Union in Europe and elsewhere . The approach entailed a major buildup of U . S . nuclear forces and a corresponding reduction in America ' s non - nuclear ground and naval strength . The Soviet Union viewed these developments as " atomic blackmail " . In Greece , civil war broke out in 1947 between Anglo - American - supported royalist forces and communist - led forces , with the royalist forces emerging as the victors . The U . S . launched a massive programme of military and economic aid to Greece and to neighbouring Turkey , arising from a fear that the Soviet Union stood on the verge of breaking through the NATO defence line to the oil - rich Middle East . On March 12 , 1947 , to gain Congressional support for the aid , U . S . President Harry Truman described the aid as promoting democracy in defense of the " free world " , a principle that became known as the Truman Doctrine . The U . S . sought to promote an economically strong and politically united Western Europe to counter the threat posed by the Soviet Union . This was done openly using tools such as the European Recovery Program , which encouraged European economic integration . The International Authority for the Ruhr , designed to keep German industry down and controlled , evolved into the European Coal and Steel Community , a founding pillar of the European Union . The United States also worked covertly to promote European integration , for example using the American Committee on United Europe to funnel funds to European federalist movements . In order to ensure that Western Europe could withstand the Soviet military threat , the Western European Union was founded in 1948 and NATO in 1949 . The first NATO Secretary General , Lord Ismay , famously stated the organisation ' s goal was " to keep the Russians out , the Americans in , and the Germans down " . However , without the manpower and industrial output of West Germany no conventional defence of Western Europe had any hope of succeeding . To remedy this , in 1950 the U . S . sought to promote the European Defence Community , which would have included a rearmed West Germany . The attempt was dashed when the French Parliament rejected it . On May 9 , 1955 , West Germany was instead admitted to NATO ; the immediate result was the creation of the Warsaw Pact five days later . The Cold War also saw the creation of propaganda and espionage organisations such as Radio Free Europe , the Information Research Department , the Gehlen Organization , the Central Intelligence Agency , the Special Activities Division , and the Ministry for State Security . Asia . In Asia , the surrender of Japanese forces was complicated by the split between East and West as well as by the movement toward national self - determination in European colonial territories . China . As agreed at the Yalta Conference , the Soviet Union went to war against Japan three months after the defeat of Germany . The Soviet forces invaded Manchuria . This was the end of the Manchukuo puppet state and all Japanese settlers were forced to leave China . The Soviet Union dismantled the industrial base in Manchuria built up by the Japanese in the preceding years . Manchuria also became a base for the Communist Chinese forces because of the Soviet presence . After the war , the Kuomintang ( KMT ) party ( led by generalissimo Chiang Kai - shek ) and the Communist Chinese forces resumed their civil war , which had been temporarily suspended when they fought together against Japan . The fight against the Japanese occupiers had strengthened popular support among the Chinese for the Communist guerrilla forces while it weakened the KMT , who depleted their strength fighting a conventional war . Full - scale war between the opposing forces broke out in June 1946 . Despite U . S . support to the Kuomintang , Communist forces were ultimately victorious and established the People ' s Republic of China ( PRC ) on the mainland . The KMT forces retreated to the island of Taiwan in 1949 . Hostilities had largely ceased in 1950 . With the Communist victory in the civil war , the Soviet Union gave up its claim to military bases in China that it had been promised by the Western Allies during World War II . The defeat of the US - backed KMT led to a debate in the United States about who in the US government was responsible for this , the debate is commonly labeled " Who lost China ? " The outbreak of the Korean War diverted the attention of the PRC at the same time as it bolstered US support for Chiang Kai - shek , the two main factors that prevented the PRC from invading Taiwan . Intermittent military clashes occurred between the PRC and Taiwan from 1950 - 1979 . Taiwan unilaterally declared the civil war over in 1991 , but no formal peace treaty or truce exists and the PRC officially sees Taiwan as a breakaway province that rightfully belongs to it and has expressed its opposition to Taiwanese independence . Even so , tensions between the two states has decreased over time for example with the Chen - Chiang summit s ( 2008 - 2011 ) . Sino - American relations ( between the PRC and the US ) continued to be mostly hostile up until US president Nixon visited China in 1972 . From this point the relations between them have improved over time although some tension and rivalry remain even with the end of the Cold War and the PRC ' s distancing from the Communist ideology . Korea . At the Yalta Conference , the Allies agreed that an undivided post - war Korea would be placed under four - power multinational trusteeship . After Japan ' s surrender , this agreement was modified to a joint Soviet - American occupation of Korea . The agreement was that Korea would be divided and occupied by the Soviets from the north and the Americans from the south . Korea , formerly under Japanese rule , and which had been partially occupied by the Red Army following the Soviet Union ' s entry into the war against Japan , was divided at the 38th parallel on the orders of the U . S . War Department . A U . S . military government in southern Korea was established in the capital city of Seoul . The American military commander , Lt . Gen . John R . Hodge , enlisted many former Japanese administrative officials to serve in this government . North of the military line , the Soviets administered the disarming and demobilisation of repatriated Korean nationalist guerrillas who had fought on the side of Chinese nationalists against the Japanese in Manchuria during World War II . Simultaneously , the Soviets enabled a build - up of heavy armaments to pro - communist forces in the north . The military line became a political line in 1948 , when separate republics emerged on both sides of the 38th parallel , each republic claiming to be the legitimate government of Korea . It culminated in the north invading the south , and the Korean War two years later . Malaya . Labour and civil unrest broke out in the British colony of Malaya in 1946 . A state of emergency was declared by the colonial authorities in 1948 with the outbreak of acts of terrorism . The situation deteriorated into a full - scale anti - colonial insurgency , or Anti - British National Liberation War as the insurgents referred to it , led by the Malayan National Liberation Army ( MNLA ) , the military wing of the Malayan Communist Party . The Emergency would endure for the next 12 years , ending in 1960 . In 1967 , communist leader Chin Peng revived hostilities , known as the Communist Insurgency War , ending in the defeat of the communists by British Commonwealth forces in 1969 . French Indochina . Events during World War II in the colony of French Indochina ( consisting of the modern - day states of Vietnam , Laos and Cambodia ) set the stage for the First Indochina War which in turn led to the Vietnam War . During World War II , the Vichy French aligned colonial authorities cooperated with the Japanese invaders . The communist - controlled common front Viet Minh ( supported by the Allies ) was formed among the Vietnamese in the colony in 1941 to fight for the independence of Vietnam , against both the Japanese and prewar French powers . After the Vietnamese Famine of 1945 support for the Viet Minh was bolstered as the front launched a rebellion , sacking rice warehouses and urging the Vietnamese to refuse to pay taxes . Because the French colonial authorities started to hold secret talks with the Free French , the Japanese interned them 9 March 1945 . When Japan surrendered in August , this created a power vacuum , and the Viet Minh took power in the August Revolution , declaring the independent Democratic Republic of Vietnam . However , the Allies ( including the Soviet Union ) all agreed that the area belonged to the French . Nationalist Chinese forces moved in from the north and British from the south ( as the French were unable to do so immediately themselves ) and then handed power to the French , a process completed by March 1946 . Attempts to integrate the Democratic Republic of Vietnam with French rule failed and the Viet Minh launched their rebellion against the French rule starting the First Indochina War that same year ( the Viet Minh organized common fronts to fight the French in Laos and Cambodia ) . The war ended in 1954 with French withdrawal and a partition of Vietnam that was intended to be temporary until elections could be held . The Democratic Republic of Vietnam held the north while South Vietnam formed into a separate republic in control of Ngo Dinh Diem who was backed in his refusal to hold elections by the US . The communist party of the south eventually organized the common front NLF to fight to unite south and north under the Democratic Republic of Vietnam and thus began the Vietnam War , which ended with the Democratic Republic of Vietnam conquering the South in 1975 . Dutch East Indies . Japan invaded and occupied Indonesia during the war and replaced much of the Dutch colonial state . Although the top positions were held by Japanese , the internment of all Dutch citizens meant that Indonesians filled many leadership and administrative positions . Following the Japanese surrender in August 1945 , nationalist leaders Sukarno and Mohammad Hatta declared Indonesian independence . A four and a half - year struggle followed as the Dutch tried to re - establish their colony , using a significant portion of their Marshall Plan aid to this end . The Dutch were directly helped by UK forces who sought to re - establish the colonial dominions in Asia . The UK also kept 35 , 000 Japanese Surrendered Personnel under arms to fight the Indonesians . Although Dutch forces re - occupied most of Indonesia ' s territory a guerrilla struggle ensued , and the majority of Indonesians , and ultimately international opinion , favoured Indonesian independence . In December 1949 , the Netherlands formally recognised Indonesian sovereignty . Covert operations and espionage . British covert operations in the Baltic States , which began in 1944 against the Nazis , escalated after the war . In Operation Jungle , the Secret Intelligence Service ( known as MI6 ) recruited and trained Balts for the clandestine work in the Baltic states between 1948 and 1955 . Leaders of the operation included Alfons Rebane , Stasys Žymantas , and Rūdolfs Silarājs . The agents were transported under the cover of the " British Baltic Fishery Protection Service " . They launched from British - occupied Germany , using a converted World War II E - boat captained and crewed by former members of the wartime German navy . British intelligence also trained and infiltrated anti - communist agents into Russia from across the Finnish border , with orders to assassinate Soviet officials . In the end , counter - intelligence supplied to the KGB by Kim Philby allowed the KGB to penetrate and ultimately gain control of MI6 ' s entire intelligence network in the Baltic states . Vietnam and the Middle East would later damage the reputation gained by the US during its successes in Europe . The KGB believed that the Third World rather than Europe was the arena in which it could win the Cold War . Moscow would in later years fuel an arms buildup in Africa . In later years , African countries used as proxies in the Cold War would often become " failed states " of their own . Recruitment of former enemy scientists . When the divisions of postwar Europe began to emerge , the war crimes programmes and denazification policies of Britain and the United States were relaxed in favour of recruiting German scientists , especially nuclear and long - range rocket scientists . Many of these , prior to their capture , had worked on developing the German V - 2 long - range rocket at the Baltic coast German Army Research Center Peenemünde . Western Allied occupation force officers in Germany were ordered to refuse to cooperate with the Soviets in sharing captured wartime secret weapons . In Operation Paperclip , beginning in 1945 , the United States imported 1 , 600 German scientists and technicians , as part of the intellectual reparations owed to the U . S . and the UK , including about $ 10 billion ( US $ billion in 2017 dollars ) in patents and industrial processes . In late 1945 , three German rocket - scientist groups arrived in the U . S . for duty at Fort Bliss , Texas , and at White Sands Proving Grounds , New Mexico , as “ War Department Special Employees ” . The wartime activities of some Operation Paperclip scientists would later be investigated . Arthur Rudolph left the United States in 1984 , in order to not be prosecuted . Similarly , Georg Rickhey , who came to the United States under Operation Paperclip in 1946 , was returned to Germany to stand trial at the Mittelbau - Dora war crimes trial in 1947 . Following his acquittal , he returned to the United States in 1948 and eventually became a U . S . citizen . The Soviets began Operation Osoaviakhim in 1946 . NKVD and Soviet army units effectively deported thousands of military - related technical specialists from the Soviet occupation zone of post - war Germany to the Soviet Union . The Soviets used 92 trains to transport the specialists and their families , an estimated 10 , 000 - 15 , 000 people . Much related equipment was also moved , the aim being to virtually transplant research and production centres , such as the relocated V - 2 rocket centre at Mittelwerk Nordhausen , from Germany to the Soviet Union . Among the people moved were Helmut Gröttrup and about two hundred scientists and technicians from Mittelwerk . Personnel were also taken from AEG , BMW ' s Stassfurt jet propulsion group , IG Farben ' s Leuna chemical works , Junkers , Schott AG , Siebel , Telefunken , and Carl Zeiss AG . The operation was commanded by NKVD deputy Colonel General Serov , outside the control of the local Soviet Military Administration . The major reason for the operation was the Soviet fear of being condemned for noncompliance with Allied Control Council agreements on the liquidation of German military installations . Some Western observers thought Operation Osoaviakhim was a retaliation for the failure of the Socialist Unity Party in elections , though Osoaviakhim was clearly planned before that . Demise of the League of Nations and the founding of the United Nations . As a general consequence of the war and in an effort to maintain international peace , the Allies formed the United Nations ( UN ) , which officially came into existence on October 24 , 1945 . The UN replaced the defunct League of Nations ( LN ) as the global intergovernmental organization . The LN was formally dissolved on 20 April 1946 , but had in practice ceased to function in 1939 , being unable to stop the outbreak of World War II . The UN inherited some of the bodies of the LN , such as the International Labour Organization . The UN adopted The Universal Declaration of Human Rights in 1948 , " as a common standard of achievement for all peoples and all nations . " The Soviet Union abstained from voting on adoption of the declaration . The U . S . did not ratify the social and economic rights sections . The five major Allied powers were given permanent membership in the United Nations Security Council . The permanent members can veto any United Nations Security Council resolution , the only UN decisions that are binding according to international law . The five powers were at the time of the founding : the United States of America , the United Kingdom , France , the Soviet Union and the Republic of China . The Republic of China lost the Chinese Civil War and retreated to the island of Taiwan by 1950 but continued to be a permanent member of the Council even though the " de facto " state in control of mainland China was the People ' s Republic of China ( PRC ) . This was changed in 1971 when the PRC was given the permanent membership previously held by the Republic of China . Russia inherited the permanent membership of the Soviet Union in 1991 after the dissolution of that state . Economic aftermath . By the end of the war , the European economy had collapsed with 70 % of the industrial infrastructure destroyed . The property damage in the Soviet Union consisted of complete or partial destruction of 1 , 710 cities and towns , 70 , 000 villages / hamlets , and 31 , 850 industrial establishments . The strength of the economic recovery following the war varied throughout the world , though in general it was quite robust . In Europe , West Germany , after having continued to decline economically during the first years of the Allied occupation , later experienced a remarkable recovery , and had by the end of the 1950s doubled production from its pre - war levels . Italy came out of the war in poor economic condition , but by 1950s , the Italian economy was marked by stability and high growth . France rebounded quickly and enjoyed rapid economic growth and modernisation under the Monnet Plan . The UK , by contrast , was in a state of economic ruin after the war and continued to experience relative economic decline for decades to follow . The Soviet Union also experienced a rapid increase in production in the immediate post - war era . Japan experienced rapid economic growth , becoming one of the most powerful economies in the world by the 1980s . China , following the conclusion of its civil war , was essentially bankrupt . By 1953 , economic restoration seemed fairly successful as production had resumed pre - war levels . This growth rate mostly persisted , though it was interrupted by economic experiments during the disastrous Great Leap Forward . At the end of the war , the United States produced roughly half of the world ' s industrial output . This dominance had lessened significantly by the early 1970s .