1. World War I was the first world-scale war fought by two imperialist countries to carve up the world again and compete for sphere of influence and hegemony.
1. Time: 19 14 starts and 19 18 ends.
2. The trigger was the Sarajevo incident.
3. Frontier: After the war began, three fronts appeared in the European continent: the western front, which extended from the North Sea to the Swiss border, and was fought by British, French and Belgian troops against Germany; On the eastern front, from the Baltic Sea in the north to Romania in the south, Russian troops fought against Germany and Austria; In addition, there is the Balkan front, where Serbian troops fight Austrian troops.
Second, World War II was the largest global war launched by human society, with the heaviest casualties and the greatest destruction.
1. Time: 1939 starts and 1945 ends.
2. The warring parties: The warring parties in World War II were the anti-fascist alliance composed of the United States, the Soviet Union, China, Britain and France, and the Axis Group of fascist countries composed of Germany, Japan and Italy.
3. Post-war influence: The political and economic structure of the post-war world was largely brought about by the results of the war. In the military field, World War II played an important role in promoting the development of military weapons, and armored forces were used in large-scale operations. In addition, radar, jet fighters, rockets and missiles, electronic computers, nuclear weapons and other high-tech weapons have been put into use and played an important role in the war.
Extended data:
Reflection on the Second World War
1, two sources of war
World War II was different. There is not one root cause of war, but two. Japan is in the east and Germany is in the west. The contradictions that caused the war are extremely complicated: there are contradictions between imperialism, between imperialism and socialist countries, between militaristic Japan and semi-colonial and semi-feudal China and Asian colonial and semi-colonial countries, and between Japan and European and American countries.
2. Two main battlefields
There are two sources of war in World War II: the East and the West; There are two points in the war, namely, the starting point of the war: Asia and Japan invaded China; Europe and Germany invaded Poland. History and logic have proved that there were two main battlefields in World War II: one in Asia and the other in Europe.
3. Two different post-war treatment and war understanding.
During World War II, the Soviet Union, China, the United States, Britain and France all made their own efforts. Among them, the Soviet Union and China suffered the most. The loss of population and property is huge. Germany and Japan were also weakened by defeat.
Since the Soviet Union and the United States made the greatest contributions in the late World War II and were also the most powerful countries in the world, they also benefited the most after the war.
The punishment for Germany after the war was not exactly the same as that for Japan. With Hitler's suicide during the Soviet conquest of Berlin, the old German state system disintegrated and the military power was completely shattered. Although the occupation of Japan by the US military has transformed Japanese society to a certain extent and established a "peace constitution", it has not fundamentally eradicated militarism.
References:
World War (a global war between opposing countries) _ Baidu Encyclopedia
Zhang Haipeng: Macro Reflection on the History of World War II-Xinhuanet