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Aftermath of World War II

Events after the end of the war in 1945

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View of the defendants in the dock at the International Military Tribunal trial of war criminals in Nuremberg, Bavaria, Germany.
Raymond D’Addario · Public domain

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Through Soviet Union, World War II and United Nations

Once allies during World War II, the United States and the Soviet Union became competitors on the world stage and engaged in the Cold War, so called because it never resulted in overt, declared total war between the two powers. It was instead characterized by espionage, political subversion, and proxy wars. Western Europe was rebuilt through the American Marshall Plan, whereas Central and Eastern Europe fell under the Soviet sphere of influence and eventually behind an "Iron Curtain." Europe was divided into a U.S.-led Western Bloc and a Soviet-led Eastern Bloc. Internationally, alliances with the two blocs gradually shifted, 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, and part of the reason that the Cold War never became a "hot" war was that the Soviet Union and the United States had nuclear deterrents against each other, leading to a mutually assured destruction standoff.

As a consequence of the war, the Allies created the United Nations, an organization for international cooperation and diplomacy, similar to the League of Nations. Members of 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, which later evolved into the European Economic Community and ultimately into the current European Union. This effort primarily began as an attempt to avoid another war between West Germany and France through economic cooperation and integration, and a common market for important natural resources.

The end of the war opened the way for decolonization, as independence was granted to India and Pakistan (from the UK), Vietnam, Laos, Cambodia, French India and Vanuatu (from France), Indonesia (from the Netherlands), the Philippines (from the US), and several Arab nations from specific Mandates granted to European states by the defunct League of Nations. The State of Israel was also established following the disestablishment of the British-ruled Mandatory Palestine and the 1948 Palestine War. Nations in Sub-Saharan Africa achieved independence in the 1950s to 1970s.

The aftermath of World War II saw the rise of communist influence in East and Southeast Asia. The People's Republic of China was founded after the Chinese Communist Party (CCP) emerged victorious from the Chinese Civil War in 1949, and the First Indochina War was fought between the Viet Minh government and France after the Japanese retreat. The Korean War led to the division of the Korean Peninsula between the communist North Korea and the Western-aligned South Korea.

Immediate effects of World War II

At the end of the war in Europe, tens of millions of people had been killed and even more were displaced, European economies had collapsed, and much of Europe's industrial infrastructure had been destroyed. In response, in 1947 US Secretary of State George C. Marshall devised the "European Recovery Program," which became known as the Marshall Plan. Under the plan, from 1948 to 1952 the United States government allocated $13 billion (US$140 billion in 2024 dollars) for the reconstruction of affected countries in Western Europe.

United Kingdom

The British Empire ended early on in the war, by the end of the war, the economy of the United Kingdom was one of severe privation, as a significant portion of its national wealth had been consumed by the war effort. Until the introduction in 1941 of Lend-Lease aid from the United States, the UK had been spending its assets to purchase American equipment including aircraft and ships—over £437 million (equivalent to some £29 billion in 2024) on aircraft alone. Lend-Lease came just before its reserves were exhausted. Britain had placed 55% of its total labour force into war production.

In the spring of 1945, after the final defeat of Germany, the Labour Party withdrew from the wartime coalition government to oust Winston Churchill, 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, who had been Deputy Prime Minister in the coalition government.

Britain's war debt was described by some in the U.S. 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 U.S. 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 sterling. From 1946 to 1948, the UK introduced bread rationing, which it had never done during the war.

Soviet Union

The Soviet Union suffered enormous losses in the war against Germany. The Soviet population decreased by about 27 million during the war; of these, 8.7 million were combatant deaths. The 19 million non-combatant 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.

Allied forces initiated a mandatory repatriation of Soviet citizens following the Yalta Conference. These included 4.2 million Soviet prisoners of war, Ostarbeiters, and collaborators. While roughly 80 percent returned voluntarily, Western Allies initially used force to transfer those who resisted. Notable operations included the British handover of collaborationist Cossack formations and Operation Keelhaul, which targeted remaining military collaborators.

Declassified archives disprove claims of universal, immediate persecution for the returnees. 58 percent of returnees were cleared and able to return home. Officials mobilized 33.5 percent, primarily former POWs, into the Red Army or construction battalions for forced labor, and transferred 6.5 percent to NKVD special camps. Rank-and-file military collaborators received six-year terms in special settlements, and the state prosecuted officers and civilian collaborators in positions of authority sentencing them to the Gulag. Returning civilians and former POWs faced extortion, heavy labor, and social stigma that forced many to hide their pasts.

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 coerced Soviet-occupied Central and Eastern Europe to supply machinery and raw materials. Germany and former Nazi satellites made reparations to the Soviet Union. The reconstruction programme emphasized 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 invaded and annexed by the Red Army driving the Germans out of central and eastern Europe. New satellite states were set up by the Soviets 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 during World War II in Yugoslavia. 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. Following the Potsdam Conference agreements, the Soviet Union occupied and subsequently annexed the strategic island of Sakhalin.

Germany

In the east, the Sudetenland reverted to Czechoslovakia following the European Advisory Commission's decision to delimit German territory to be the territory it held on 31 December 1937. Close to one-quarter of pre-war (1937) Nazi 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 into 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. The 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 $10 billion (US$120 billion in 2024 dollars). In accordance with the Paris Peace Treaties, 1947, reparations were also assessed from the countries of Italy, Romania, Hungary, Bulgaria, and Finland.

US 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. The dismantling of the 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 U.S. Joint Chiefs of Staff and Generals Lucius D. Clay and George C. 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 recognized 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 onward West Germany also became a minor beneficiary of the Marshall Plan. Volunteer organizations 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 Packages to individuals in Germany was rescinded on 5 June 1946.

Following the German surrender, the International Committee of the Red Cross (ICRC) 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 United Kingdom and French occupation zones of Germany, as well as to provide relief to the prisoners held there. On 4 February 1946, the ICRC was also permitted to visit and assist prisoners in the U.S. occupation zone of Germany, although only with very small quantities of food. The ICRC petitioned successfully for improvements to be made in the living conditions of German POWs.

The German people as a whole, especially its youth, were traumatized psychologically by the previous decade of Nazi rule, with major cities and infrastructure destroyed by Allied bombardments. This trauma was multifaceted, as it permeated all levels of society, by means of the systematic Nazification of the country with the strategic creation of the Reich Ministry of Public Enlightenment and Propaganda which took over the media and all institutions, and put in place the systematic indoctrination of the very young via the creation of the Hitler Youth, the Deutsches Jungvolk, the League of German Girls and the Jungmädelbund. At the end of the war, major cities were devastated, food shortages ensued, and a wave of denazification occurred throughout occupied Germany.

France

As France was liberated from German occupation, an épuration (purge) of real and suspected Nazi collaborators began. At first, this was undertaken in an extralegal manner by the French Resistance (called the épuration sauvage, "wild purge"). French women who had had romantic liaisons with German soldiers were publicly humiliated and had their heads shaved. There was also a wave of summary executions estimated to have killed about 10,000 people.

When the Provisional Government of the French Republic established control, the Épuration légale ("legal purge") began. There were no international war crimes trials for French collaborators, who were tried in the domestic courts. Approximately 300,000 cases were investigated; 120,000 people were given various sentences including 6,763 death sentences (of which only 791 were carried out). Most convicts were given amnesty a few years later.

Italy

The aftermath of World War II left Italy with an anger against the monarchy for its endorsement of the Fascist regime for the previous twenty years. These frustrations contributed to a revival of the Italian republican movement. In the 1946 Italian constitutional referendum, held on 2 June, a day celebrated since as Festa della Repubblica, the Italian monarchy was abolished, having been associated with the deprivations of the war and the Fascist rule, especially in the North, and Italy became a republic. This was the first time that Italian women voted at the national level, and the second time overall considering the local elections that were held a few months earlier in some cities.

King Victor Emmanuel III's son, King Umberto II, was forced to abdicate and exiled. The Republican Constitution was approved on 1 January 1948, resulting from the work of a Constituent Assembly formed by the representatives of all the anti-fascist forces that contributed to the defeat of Nazi and Fascist forces during the liberation of Italy. Unlike in Germany and Japan, no war crimes tribunals 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; the Togliatti amnesty, taking its name from the Communist Party secretary at the time, pardoned all wartime common and political crimes in 1946.

The 1947 Treaty of Peace with Italy spelled the end of the Italian colonial empire, along with other border revisions, like the transfer of the Italian Islands of the Aegean to the Kingdom of Greece and the transfer to France of Briga and Tenda, as well than to minor revisions of the Franco-Italian border. Moreover, under the Treaty of Peace with Italy, Istria, Kvarner, most of the Julian March as well as the Dalmatian city of Zara was annexed by Yugoslavia, causing the Istrian–Dalmatian exodus which led to the emigration of between 230,000 and 350,000 of local ethnic Italians (Istrian Italians and Dalmatian Italians)—the others being ethnic Slovenians, ethnic Croatians and ethnic Istro-Romanians choosing to maintain Italian citizenship—towards Italy, and in smaller numbers, towards the Americas, Australia and South Africa.

The 1947 Treaty of Peace compelled Italy to pay $360 million (US dollars at 1938 prices) in war reparations: $125 million to Yugoslavia, $105 million to Greece, $100 million to the Soviet Union, $25 million to Ethiopia, and $5 million to Albania. In 1954 the Free Territory of Trieste, an independent territory between northern Italy and Yugoslavia under direct responsibility of the UN Security Council, was divided between the two states, Italy and Yugoslavia. The Italian border that applies today has existed since 1975, when Trieste was formally re-annexed to Italy after the Treaty of Osimo. In 1950 Italian Somaliland was made a United Nations Trust Territory under Italian administration until 1 July 1960.

Austria

The Federal State of Austria had been annexed by Germany in 1938 (Anschluss; this union had been banned by the 1919 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

Following the war, the Allies rescinded the Empire of Japan's pre-war annexations such as Manchuria, and Korea became militarily occupied by the United States in the south and by the Soviet Union in the north. The Philippines and Guam were returned to the United States. Burma, Malaya, and Singapore were returned to Britain and Indochina back to France. The Dutch East Indies was to be handed back to the Dutch but was resisted leading to the Indonesian war for independence. 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 into the war with Japan. The Soviet Union annexed the Kuril Islands, provoking the Kuril Islands dispute, which is ongoing, as Russia continues to occupy the islands.

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 remain. To skirt the Geneva Convention, the Allies classified many Japanese soldiers as Japanese Surrendered Personnel (JSP) instead of POWs and used them as forced labour until 1947. The United Kingdom, France, and the Netherlands used JSP to support their military operations in the region after World War II. 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-industrialize Japan, to reduce the Japanese standard of living to what prevailed between 1930 and 1934. In the end, the de-industrialisation programme 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 US 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 1939–1940, the Soviet Union invaded neutral Finland and annexed some of its territory. From 1941 until 1944, Finland aligned itself with Nazi Germany in a failed effort to regain lost territories from the Soviets. 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 people 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 US 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.

The Philippines

An estimated 1 million military and civilian Filipinos were killed from all causes; of these 131,028 were listed as killed in 72 war crime events. According to a United States analysis released years after the war, U.S. casualties were 10,380 dead and 36,550 wounded; Japanese dead were 255,795.

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