Two world wars, when they took place, which country started the war, how many countries participated

From 1939 to 1945, fascists in Germany, Italy and Japan.

The state unleashed a World War II on a scale unprecedented in human history.

More than 2 billion people from 61 countries and regions were involved in the war, and more than 51.2 million soldiers and civilians died, ending with the complete defeat of the three fascist countries of Germany, Italy, and Japan. In this life-and-death struggle that decided the fate of mankind, more than 60 countries and regions participated in the war, affecting two billion people (accounting for the world's population at that time).

80 percent), the flames of war spread to Europe, Asia, Africa, and Oceania.

and the Pacific, Indian, Atlantic, and Arctic Oceans. The area of the operation is 22 million square kilometers, the warring sides have mobilized 110 million troops, more than 55 million soldiers and civilians have died in the war, the total direct military expenditure is about 13 trillion US dollars, accounting for 60 to 70 percent of the total national income of the belligerent countries, and the total value of material losses of the participating countries is 4 trillion US dollars.

World War II broke out on September 1, 1939, how many people were there? I really don't know this very well, it should be about 31, World War II broke out on September 1, 1939, how many hundreds of millions of people are there? I really don't know much about this, it should be about 3 billion.

When World War II broke out in 1939, more than 2 billion people from 61 countries and regions were involved in the war, and 51.21 million soldiers and civilians died.

World War II, also known as the World Anti-Fascist War, lasted from September 1, 1939 to September 2, 1945. More than 2 billion people are involved in wars.

It broke out, but as early as in China, there was a full-scale war of resistance against Japanese fascism. More than 2 billion people.

The First World War lasted four years and three months from July 1914 to November 1918, and the war swept through Europe, Asia and Africa, with 34 countries and regions participating in the war, and more than 1.5 billion people affected by the war, accounting for about 75% of the world's total population at that time. The two sides mobilized 889 divisions with a total of 74 million troops, with a total of 8.4 million killed and another 21 million wounded.

From September 1, 1939 to September 2, 1945, Germany, Italy, and Japan, the fascist Axis powers (as well as Finland, Hungary, Romania, etc.) were the second war on a global scale, with the anti-fascist alliance and the world's anti-fascist forces on the other. From Europe to Asia, from the Atlantic to the Pacific, 61 countries and regions with more than 2 billion people have been involved in wars, covering an area of 22 million square kilometers. According to incomplete statistics, there are more than 90 million military and civilian people in the war

n times There are only 2 world wars.

I guess it's been a million times! Hehe!

Twice (as of June 26, 2019).

The First World War, which took place from 1914 to 1918, was the first world-scale war between the two major blocs of imperialist countries to redivide the world and compete for spheres of influence and hegemony. It occupies an epoch-making position in the history of world military development.

The Second World War (1939-1945) was the largest, most devastating, and most devastating global war ever fought by human society.

2 times. The reason for the outbreak of the First World War: The fundamental cause was the imbalance in the political and economic development of imperialism, which changed the balance of power between the imperialist countries, and the later empires paid attention to the demands of the countries to redivide the world.

The direct cause is the result of the two major imperialist military aggressor blocs vying each other and frantically expanding their armaments. The Sarajevo assassination ignited the outbreak of World War I.

The fundamental cause of the outbreak of World War II was also due to the uneven economic and political development. The Versailles-Washington system, established after World War I, was based on the balance of power of the countries at the time, and as the uneven development intensified, it was bound to disintegrate. Under the influence of the economic crisis of 1929---1933, Germany and Japan established fascist rule, forming the source of the Eurasian war.

During this period, the connivance of Britain and France made the aggression of the fascist countries even more arrogant, and the local war eventually led to a world war.

World War I took place at the beginning of the 20th century, from July 1914 to November 1918; The Second World War was also in the 20th century, from September 1939 to August 1945. It is the two world wars in the current history of mankind.