Adolf Hitler in the context of Fascists

World War II or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks and aircraft played major roles, enabling the strategic bombing of cities and delivery of the first and only nuclear weapons ever used in war. World War II is the deadliest conflict in history, causing the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were put on trial for war crimes.

The causes of World War II included unresolved tensions in the aftermath of World War I, the rise of fascism in Europe and militarism in Japan. Key events preceding the war included Japan's invasion of Manchuria in 1931, the Spanish Civil War, the outbreak of the Second Sino-Japanese War in 1937, and Germany's annexations of Austria and the Sudetenland. World War II is generally considered to have begun on 1 September 1939, when Nazi Germany, under Adolf Hitler, invaded Poland, after which the United Kingdom and France declared war on Germany. Poland was divided between Germany and the Soviet Union under the Molotov–Ribbentrop Pact. In 1940, the Soviet Union annexed the Baltic states and parts of Finland and Romania. After the fall of France in June 1940, the war continued mainly between Germany, now assisted by Fascist Italy, and the British Empire, with fighting in the Balkans, Mediterranean, and Middle East, the aerial Battle of Britain and the Blitz, and the naval Battle of the Atlantic. Through campaigns and treaties, Germany gained control of much of continental Europe and formed the Axis alliance with Italy, Japan, and other countries. In June 1941, Germany invaded the Soviet Union, opening the Eastern Front and initially making large territorial gains.

Nazi Germany, officially the German Reich and later the Greater German Reich, was the German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a totalitarian dictatorship. The Third Reich, meaning "Third Realm" or "Third Empire", referred to the Nazi claim that Nazi Germany was the successor to the earlier Holy Roman Empire (800–1806) and German Empire (1871–1918). The Third Reich, which the Nazis referred to as the Thousand-Year Reich, ended in May 1945, after 12 years, when the Allies defeated Germany and entered the capital, Berlin, ending World War II in Europe.

After Hitler was appointed Chancellor of Germany in 1933, the Nazi Party began to eliminate political opposition and consolidate power. A 1934 German referendum confirmed Hitler as sole Führer (leader). Power was centralised in Hitler's person, and his word became the highest law. The government was not a co-ordinated, cooperating body, but rather a collection of factions struggling to amass power. To address the Great Depression, the Nazis used heavy military spending, extensive public works projects, including the Autobahnen (motorways) and a massive secret rearmament program, forming the Wehrmacht (armed forces), all financed by deficit spending. The return to economic stability and end of mass unemployment boosted the regime's popularity. Hitler made increasingly aggressive territorial demands, seizing Austria in the Anschluss of 1938, and the Sudetenland region of Czechoslovakia. Germany signed a non-aggression pact with the Soviet Union and invaded Poland in 1939, launching World War II in Europe. In alliance with Fascist Italy and other Axis powers, Germany conquered most of Europe by 1940 and threatened Britain.

A dictator is a political leader who possesses absolute power. A dictatorship is defined as a state ruled by a dictator. The word originated as the title of a Roman dictator elected by the Roman Senate to rule the republic in times of emergency. Like the terms "tyrant" and "autocrat", dictator came to be used almost exclusively as a non-titular term for oppressive rule. In modern usage, the term dictator is generally used to describe a leader who holds or abuses an extraordinary amount of personal power.

Dictatorships are often characterised by some of the following: suspension of elections and civil liberties; proclamation of a state of emergency; rule by decree; repression of political opponents; not abiding by the procedures of the rule of law; and the existence of a cult of personality centered on the leader. Dictatorships are often one-party or dominant-party states. A wide variety of leaders coming to power in different kinds of regimes, such as one-party or dominant-party states and civilian governments under a personal rule, have been described as dictators.

The Axis powers, originally called the Rome–Berlin Axis and also Rome–Berlin–Tokyo Axis, was the military coalition which initiated World War II and fought against the Allies. Its principal members were Nazi Germany, the Kingdom of Italy and the Empire of Japan. The Axis were united in their far-right positions and general opposition to the Allies, but otherwise lacked comparable coordination and ideological cohesion.

The Axis grew out of successive diplomatic efforts by Germany, Italy, and Japan to secure their own specific expansionist interests in the mid-1930s. The first step was the protocol signed by Germany and Italy in October 1936, after which Italian leader Benito Mussolini declared that all other European countries would thereafter rotate on the Rome–Berlin axis, thus creating the term "Axis". The following November saw the ratification of the Anti-Comintern Pact, an anti-communist treaty between Germany and Japan; Italy joined the Pact in 1937, followed by Hungary and Spain in 1939. The "Rome–Berlin Axis" became a military alliance in 1939 under the so-called "Pact of Steel", with the Tripartite Pact of 1940 formally integrating the military aims of Germany, Italy, Japan, and later followed by other nations. The three pacts formed the foundation of the Axis alliance.

The causes of World War II have been given considerable attention by historians. The immediate precipitating event was the invasion of Poland by Nazi Germany on September 1, 1939, and the subsequent declarations of war on Germany made by Britain and France, but many other prior events have been suggested as ultimate causes. Primary themes in historical analysis of the war's origins include the political takeover of Germany in 1933 by Adolf Hitler and the Nazi Party; Japanese militarism against China, which led to the Japanese invasion of Manchuria and the Second Sino-Japanese War; Italian aggression against Ethiopia, which led to the Second Italo-Ethiopian War; or military uprising in Spain, which led to the Spanish Civil War.

During the interwar period, deep anger arose in the Weimar Republic over the conditions of the 1919 Treaty of Versailles, which punished Germany for its role in World War I with heavy financial reparations and severe limitations on its military that were intended to prevent it from becoming a military power again. The demilitarisation of the Rhineland, the prohibition of German unification with Austria, and the loss of its overseas colonies as well as some 12% of the pre-war land area and population of the metropole all provoked strong currents of revanchism in German politics.

Fascist movements in Europe were the set of various fascist ideologies which were practiced by governments and political organizations in Europe during the 20th century. Fascism was born in Italy following World War I, and other fascist movements, influenced by Italian fascism, subsequently emerged across Europe. Among the political doctrines which are identified as ideological origins of fascism in Europe are the combining of a traditional national unity and revolutionary anti-democratic rhetoric which was espoused by the integral nationalist Charles Maurras and the revolutionary syndicalist Georges Sorel.

The earliest foundations of fascism in practice can be seen in the Italian Regency of Carnaro, led by the Italian nationalist Gabriele D'Annunzio, many of whose politics and aesthetics were subsequently used by Benito Mussolini and his Italian Fasces of Combat which Mussolini had founded as the Fasces of Revolutionary Action in 1914. Despite the fact that its members referred to themselves as "fascists", the ideology was based around national syndicalism. The ideology of fascism would not fully develop until 1921, when Mussolini transformed his movement into the National Fascist Party, which then in 1923 incorporated the Italian Nationalist Association. The INA established fascist tropes such as colored shirt uniforms and also received the support of important proto-fascists like D'Annunzio and nationalist intellectual Enrico Corradini.

The Balkans campaign of World War II began with the Italian invasion of Greece on 28 October 1940. In the early months of 1941, Italy's offensive had stalled and a Greek counter-offensive pushed into Albania. Germany sought to aid Italy by deploying troops to Romania and Bulgaria and attacking Greece from the east. Meanwhile, the British landed troops and aircraft to shore up Greek defences. A coup d'état in Yugoslavia on 27 March caused Adolf Hitler to order the conquest of that country.

The invasion of Yugoslavia by Germany and Italy began on 6 April 1941, simultaneously with the renewed invasion of Greece; on 11 April, Hungary joined the invasion of Yugoslavia. By 17 April the Yugoslavs had signed an armistice, and by 30 April all of mainland Greece was under German or Italian control. On 20 May Germany invaded Crete by air, and by 1 June all remaining Greek and British forces on the island had surrendered. Although it had not participated in the attacks in April, Bulgaria occupied parts of both Yugoslavia and Greece shortly thereafter for the remainder of the war in the Balkans.

The Blitz (English: 'flash') was a bombing campaign by Nazi Germany and Fascist Italy against the United Kingdom during the Second World War. It lasted for eight months, from 7 September, 1940 to 11 May, 1941. The name is a shortened form of Blitzkrieg, a term used in the popular press to describe a German style of surprise attack used during the war.

Towards the end of the Battle of Britain in 1940, daylight air superiority over the United Kingdom was contested between the Luftwaffe and the Royal Air Force. Germany began conducting mass air attacks against British cities, beginning with London, in an attempt to draw the RAF Fighter Command into a battle of annihilation. Adolf Hitler and Reichsmarschall Hermann Göring, commander-in-chief of the Luftwaffe, ordered the new policy on 6 September 1940. From 7 September 1940, London was systematically bombed by the Luftwaffe for 56 of the following 57 days and nights. The attacks included a large daylight attack against London on 15 September, a large raid on 29 December 1940 against London resulting in a firestorm known as the Second Great Fire of London, and a large raid on the night of 10–11 May 1941.

The Tripartite Pact, also known as the Berlin Pact, was an agreement between Germany, Italy, and Japan signed in Berlin on 27 September 1940 by, respectively, Joachim von Ribbentrop, Galeazzo Ciano, and Saburō Kurusu (in that order) and in the presence of Adolf Hitler. It was a defensive military alliance that was eventually joined by Hungary (20 November 1940), Romania (23 November 1940), Slovakia (24 November 1940), Bulgaria (1 March 1941), and Yugoslavia (25 March 1941). Yugoslavia's accession provoked a coup d'état in Belgrade two days later. Germany, Italy, and Hungary responded by invading Yugoslavia. The resulting Italo-German client state, known as the Independent State of Croatia, joined the pact on 15 June 1941.

The Tripartite Pact was, together with the Anti-Comintern Pact and the Pact of Steel, one of a number of agreements between Germany, Japan, Italy, and other countries of the Axis powers governing their relationship.

Fascism (/ˈfæʃɪzəm/ FASH-iz-əm) is a far-right, authoritarian, and ultranationalist political ideology and movement that rose to prominence in early-20th-century Europe. Fascism is characterized by support for a dictatorial leader, centralized autocracy, militarism, forcible suppression of opposition, belief in a natural social hierarchy, subordination of individual interests for the perceived interest of the nation or race, and strong regimentation of society and the economy. Opposed to communism, democracy, liberalism, pluralism, and socialism, fascism is at the far-right of the traditional left–right spectrum.

The first fascist movements emerged in Italy during World War I before spreading to other European countries, most notably Germany. Fascism also had adherents outside of Europe. Fascists saw World War I as a revolution that brought massive changes to the nature of war, society, the state, and technology. The advent of total war and the mass mobilization of society erased the distinction between civilians and combatants. A military citizenship arose, in which all citizens were involved with the military in some manner. The war resulted in the rise of a powerful state capable of mobilizing millions of people to serve on the front lines, providing logistics to support them, and having unprecedented authority to intervene in the lives of citizens.

Alan Louis Charles Bullock, Baron Bullock (13 December 1914 – 2 February 2004) was a British historian. He is best known for his book Hitler: A Study in Tyranny (1952), the first comprehensive biography of Adolf Hitler, which influenced many other Hitler biographies.

The 1936 Summer Olympics (German: Olympische Sommerspiele 1936), officially the Games of the XI Olympiad (German: Spiele der XI. Olympiade) and officially branded as Berlin 1936, were an international multi-sport event held from 1 to 16 August 1936 in Berlin, then capital of Nazi Germany. Berlin won the bid to host the Games over Barcelona at the 29th International Olympic Committee meeting on 26 April 1931. The 1936 Games marked the second and most recent time the IOC gathered to vote in a city bidding to host those Games. Later rule modifications forbade cities hosting the bid vote from being awarded the games.

To outdo the 1932 Los Angeles Games, Chancellor Adolf Hitler had a new 100,000-seat track and field stadium built, as well as six gymnasiums and other smaller arenas. The Games were the first to be televised, with radio broadcasts reaching 41 countries. Filmmaker Leni Riefenstahl was commissioned by the German Olympic Committee to film the Games for $7 million. Her film, titled Olympia, pioneered many of the techniques now common in the filming of sports.

The Weimar Republic was a historical period of the German state from 9 November 1918 to 23 March 1933, during which it was a constitutional republic for the first time in history. The state was officially named the German Reich; it is also referred to, and unofficially proclaimed itself, as the German Republic. The period's informal name is derived from the city of Weimar,where the republic's constituent assembly took place. In English, the republic was usually simply called "Germany", with "Weimar Republic" (a term introduced by Adolf Hitler in 1929) not commonly used until the 1930s. The Weimar Republic had a semi-presidential system.

At the end of the First World War (1914–1918), the German Empire was economically and militarily exhausted and sued the Allies for peace. Awareness of an imminent defeat sparked the German revolution, the abdication of Kaiser Wilhelm II, the collapse of the Empire and the proclamation of the Weimar Republic. Hostilities in the war formally ceased with the Armistice of 11 November 1918.

The Great Depression was a severe global economic downturn from 1929 to 1939. The period was characterized by high rates of unemployment and poverty, drastic reductions in industrial production and international trade, and widespread bank and business failures around the world. The economic contagion began in 1929 in the United States, the largest economy in the world, with the devastating Wall Street crash of 1929 often considered the beginning of the Depression. Among the countries with the most unemployed were the U.S., the United Kingdom, and Germany.

The Depression was preceded by a period of industrial growth and social development known as the "Roaring Twenties". Much of the profit generated by the boom was invested in speculation, such as on the stock market, contributing to growing wealth inequality. Banks were subject to minimal regulation, resulting in loose lending and widespread debt. By 1929, declining spending had led to reductions in manufacturing output and rising unemployment. Share values continued to rise until the October 1929 crash, after which the slide continued until July 1932, accompanied by a loss of confidence in the financial system. By 1933, the U.S. unemployment rate had risen to 25%, about one-third of farmers had lost their land, and 9,000 of its 25,000 banks had gone out of business. President Herbert Hoover was unwilling to intervene heavily in the economy, and in 1930 he signed the Smoot–Hawley Tariff Act, which worsened the Depression. In the 1932 presidential election, Hoover was defeated by Franklin D. Roosevelt, who from 1933 pursued a set of expansive New Deal programs in order to provide relief and create jobs. In Germany, which depended heavily on U.S. loans, the crisis caused unemployment to rise to nearly 30% and fueled political extremism, paving the way for Adolf Hitler's Nazi Party to rise to power in 1933.

Since the 19th century, the United States government has participated and interfered, both overtly and covertly, in the replacement of many foreign governments. In the latter half of the 19th century, the U.S. government initiated actions for regime change mainly in Latin America and the southwest Pacific, including the Spanish–American and Philippine–American wars. At the onset of the 20th century, the United States shaped or installed governments in many countries around the world, including neighbors Hawaii, Panama, Honduras, Nicaragua, Mexico, Haiti, and the Dominican Republic.

During World War II, the U.S. helped overthrow many Nazi German or Imperial Japanese puppet regimes. Examples include regimes in the Philippines, Korea, East China, and parts of Europe. United States forces, together with the United Kingdom and Soviet Union, were also instrumental in collapsing Adolf Hitler's government in Germany and deposing Benito Mussolini in Italy.

Annelies Marie Frank (German: [ˈanə(liːs maˈʁiː) ˈfʁaŋk] , Dutch: [ˌɑnəˈlis maːˈri ˈfrɑŋk, ˈɑnə ˈfrɑŋk] ; 12 June 1929 – c. February or March 1945) was a German-born Jewish girl and diarist who perished in the Holocaust. She gained worldwide fame posthumously for keeping a diary documenting her life in hiding during the German occupation of the Netherlands. In the diary, she regularly described her family's everyday life in their hiding place in an Amsterdam attic from 1942 until their arrest in 1944.

Frank was born in Frankfurt, Germany, in 1929. In 1934, when she was four and a half, Frank and her family moved to Amsterdam after Adolf Hitler and the Nazi Party gained control of Germany. By May 1940, the family was trapped in Amsterdam due to Germany's occupation. Frank lost her German citizenship in 1941 and became stateless. Despite spending most of her life in the Netherlands and being a de facto Dutch national, she never officially became a Dutch citizen. As persecutions of the Jewish population increased in July 1942, the family went into hiding in rooms concealed behind a bookcase in the building where Frank's father, Otto Frank, worked. The family was arrested two years later by the Gestapo, on 4 August 1944.

The 1930s (pronounced "nineteen-thirties" and commonly abbreviated as "the '30s" or "the Thirties") was a decade that began on January 1, 1930, and ended on December 31, 1939. In the United States, the Dust Bowl led to the nickname the "Dirty Thirties".

The decade was defined by a global economic and political crisis that culminated in the Second World War. It saw the collapse of the international financial system, beginning with the Wall Street crash of 1929, the largest stock market crash in American history. The subsequent economic downfall, called the Great Depression, had traumatic social effects worldwide, leading to widespread poverty and unemployment, especially in the economic superpower of the United States and in Germany, which was already struggling with the payment of reparations for the First World War. The Dust Bowl in the United States (which led to the nickname the "Dirty Thirties") exacerbated the scarcity of wealth. U.S. President Franklin D. Roosevelt, who took office in 1933, introduced a program of broad-scale social reforms and stimulus plans called the New Deal in response to the crisis. The Soviet Union's second five-year plan gave heavy industry top priority, putting the Soviet Union not far behind Germany as one of the major steel-producing countries of the world, while also improving communications. First-wave feminism made advances, with women gaining the right to vote in South Africa (1930, whites only), Brazil (1933), and Cuba (1933). Following the rise of Adolf Hitler and the emergence of the NSDAP as the country's sole legal party in 1933, Germany imposed a series of laws which discriminated against Jews and other ethnic minorities.

The end of World War II in Europe occurred in May 1945. Following the suicide of Adolf Hitler on 30 April, leadership of Nazi Germany passed to Grand Admiral Karl Dönitz and the Flensburg Government. Soviet troops captured Berlin on 2 May, and a number of German military forces surrendered over the next few days. On 8 May, Field Marshal Wilhelm Keitel signed the German Instrument of Surrender, an unconditional surrender to the Allies, in Karlshorst, Berlin. This is celebrated as Victory in Europe Day, while in Russia, 9 May is celebrated as Victory Day.

Some fighting continued after the German surrender. Some battles continued on the Eastern Front such as the Courland Pocket in western Latvia surrendering on 10 May, and the Prague offensive in Czechoslovakia ending on 11 May. On 25 May 1945, the Battle of Odžak ended in a Yugoslav Partisan victory. Following the conclusion in the European theatre, with the war continuing in the Pacific theatre.