what was the main cause of the second world war
Causes of World War II Among the causes of World War II were Italian fascism in the 1920s, Japanese militarism and invasion of China in the 1930s, and especially the political takeover in 1933 of Germany by Adolf Hitler and his Nazi Party and its aggressive foreign policy. The immediate cause was Britain and France declaring war on Germany after it invaded Poland in September 1939.
World war A world war, as it is commonly understood, is a large-scale war involving many of the countries of the world or many of the most powerful and populous ones. World wars span multiple countries on multiple continents, with battles fought in many theaters. While a variety of global conflicts have been subjectively deemed "world wars", such as the Cold War and the War on Terror, the term is widely and generally accepted only as it is retrospectively applied to two major international conflicts that occurred during the 20th century: World War I (1914–1918) and World War II (1939–1945).
Alexander I of Russia The campaign was a turning point in the Napoleonic Wars. The reputation of Napoleon was severely shaken, and French hegemony in Europe was dramatically weakened. The Grande ArmÃ©e, made up of French and allied invasion forces, was reduced to a fraction of its initial strength. These events triggered a major shift in European politics. France's ally Prussia, soon followed by Austria, broke their imposed alliance with France[32] and switched sides. This triggered the War of the Sixth Coalition.
Aftermath of World War II 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 Common Market and ultimately into the current European Union. This effort primarily began as an attempt to avoid another war between Germany and France by economic cooperation and integration, and a common market for important natural resources.