World War II or the Second World War was a global conflict that lasted from 1939 to 1945. The vast majority of the world's countries, including all the great powers, fought as part of two opposing military alliances: the Allies and the Axis. Many participating countries invested all available economic, industrial, and scientific capabilities into this total war, blurring the distinction between civilian and military resources. Aircraft played a major role, enabling the strategic bombing of population centres and delivery of the only two nuclear weapons ever used in war. It was by far the deadliest conflict in history, resulting in 70–85 million fatalities. Millions died due to genocides, including the Holocaust, as well as starvation, massacres, and disease. In the wake of Axis defeat, Germany, Austria, and Japan were occupied, and war crime tribunals were conducted against German and Japanese leaders.
The Axis powers, originally called the Rome–Berlin Axis and also Rome–Berlin–Tokyo Axis, was a military coalition that 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 European theatre of World War II was one of the two main theatres of combat during World War II. It saw heavy fighting across Europe for almost six years, starting with Germany's invasion of Poland on 1 September 1939 and ending with the Western Allies conquering most of Western Europe, the Soviet Union conquering most of Eastern Europe including the German capital Berlin, and Germany's unconditional surrender on 8 May 1945 although fighting continued elsewhere in Europe until 25 May. On 5 June 1945, the Berlin Declaration proclaiming the unconditional surrender of Germany to the four victorious powers was signed. The Allied powers fought the Axis powers on two major fronts, but there were other fronts varying in scale from the Italian campaign, to the Polish Campaign, as well as in a strategic bombing offensive and in the adjoining Mediterranean and Middle East theatre.
The events preceding World War II in Europe are closely tied to the bellicosity of Fascist Italy, Nazi Germany, and Imperial Japan, as well as the Great Depression. The peace movement led to appeasement and disarmament.
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; the consent of Western countries to Germany's actions on the annexation of Austria and the partition of Czechoslovakia; and Germany's initial success in negotiating the Molotov–Ribbentrop Pact with the Soviet Union to divide the territorial control of Eastern Europe between them.
Almost every country in the world participated in World War II. Most were neutral at the beginning, but only a relative few nations remained neutral to the end. The Second World War pitted two alliances against each other, the Axis powers and the Allied powers. It is generally estimated that a total of 74 million people died, with the lowest estimate being 40 million dead and the highest estimate being 90 million dead. The leading Axis powers were Nazi Germany, the Empire of Japan and the Kingdom of Italy; while the British Empire, the United States, the Soviet Union and China were the "Big Four" Allied powers.
This timeline of events preceding World War II covers the events that affected or led to World War II.
The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during World War II (1939–1945) to oppose the Axis powers. Its principal members by the end of 1941 were the "Big Four" – United Kingdom, United States, Soviet Union, and China.
The German Empire established diplomatic relations with the Republic of China in October 1913. After the creation of the Weimar Republic, Germany followed a policy of friendship towards China. Nazi Germany and the Nationalist government of the Republic of China maintained bilateral relations between 1933 and 1941. The Chinese Nationalists sought German military and economic support to help them consolidate control over factional warlords and resist Japanese imperialism. Germany sought raw materials such as tungsten and antimony from China. During the mid-1930s, thousands of Chinese soldiers were trained by German officers and German economic investment made its way into China. However, Joachim von Ribbentrop strongly favored an alliance with Japan over one with China, and starting with the 1936 Anti-Comintern Pact, Germany began to realign its East Asia policy. After Japan invaded China in 1937 and Ribbentrop became Foreign Minister the following year, German aid to China was cut off. In July 1941, Nazi Germany severed relations with Nationalist China and transferred their recognition to the Japanese-controlled Wang Jingwei regime. Nonetheless, China did not officially declare war on the Axis Powers until after the attack on Pearl Harbor.
During World War II, the Spanish State under Francisco Franco espoused neutrality as its official wartime policy. This neutrality wavered at times, and "strict neutrality" gave way to "non-belligerence" after the Fall of France in June 1940. Franco wrote to Adolf Hitler offering to join the war on 19 June 1940 in exchange for help building Spain's colonial empire. Later in the same year Franco met with Hitler in Hendaye to discuss Spain's possible accession to the Axis Powers. The meeting went nowhere, but Franco did help the Axis—whose members Italy and Germany had supported him during the Spanish Civil War (1936–1939)—in various ways.
Final Impact is a science fiction novel by Australian writer John Birmingham, the last volume of his alternate history Axis of Time trilogy.
Opposition to World War II was expressed by the governments and peoples of all combatant nations to various extents. Initial reluctance for conflict in the Allied democratic nations changed to overwhelming, but not complete, support once the war had been joined. Some politicians and military leaders in the Axis powers opposed starting or expanding the conflict during its course. However, the totalitarian nature of these countries limited their effect. Noncombatant nations opposed joining the war for a variety of reasons, including self preservation, economic disincentives or a belief in neutrality in upon itself. After the war the populations of the former Axis powers mostly regretted their nations' involvement. In contrast, the people of Allied nations celebrated their involvement and the perceived just nature of the war, particularly in comparison with World War I.
Foreign relations of the Axis powers includes states which were not officially members of the Axis but had relations with one or more Axis members.
The Man with the Iron Heart is an alternate history novel by Harry Turtledove. Published in 2008, it takes as its premise the survival by Reinhard Heydrich of his 1942 assassination in Czechoslovakia and his subsequent leadership of the postwar Werwolf insurgency in occupied Germany, which Turtledove depicts as growing into a far more formidable force than was the case historically.
This is a timeline of events that stretched over the period of World War II in 1941, marked also by the beginning of Operation Barbarossa on the Eastern Front.
This is a timeline of events that occurred during World War II in 1943.
This is a timeline of events that occurred during 1944 in World War II.
This is a timeline of the events that stretched over the period of late World War II, its conclusion and legal aftermath, from January 1945 to 1991.
Counting Up, Counting Down is a collection of short stories by Harry Turtledove, most of which were first published in various fiction magazines in the 1990s. It is named after two of the stories appearing in the book, one called "Forty, Counting Down" and the other named "Twenty-One, Counting Up", which are united by the character of Justin Kloster. The story genres represented include alternate history, time travel, fantasy, straight historical fiction, and more. Two stories, "The Decoy Duck" and "The Seventh Chapter," are set in the Videssos Universe, with the former story being set before any of the other stories and books in that universe. The book was originally published by Del Rey as a trade paperback in January 2002. In the same month, it was brought out as a leatherbound limited edition by Easton Press.
The foreign relations of Third Reich were characterized by the territorial expansionist ambitions of Germany's dictator Adolf Hitler and the promotion of the ideologies of anti-communism and antisemitism within Germany and its conquered territories. The Nazi regime oversaw Germany's rise as a militarist world power from the state of humiliation and disempowerment it had experienced following its defeat in World War I. From the late 1930s to its defeat in 1945, Germany was the most formidable of the Axis powers - a military alliance between Imperial Japan, Fascist Italy, and their allies and puppet states.
