Question

what were the reasons of world wars
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Answer 1

Answer:

The first world war was faught between Allied powers and central powers

The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, and nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary.

The main cause of second world war was Adolf Hitler about his intension to conquer the worls.

Answer 2

Answer:

World War I, known as the "war to end all wars," occurred between July 1914 and November 11, 1918. By the end of the war, over 17 million people had been killed, including over 100,000 American troops. While the causes of the war are infinitely more complicated than a simple timeline of events, and are still debated and discussed to this day, the list below provides an overview of the most frequently-cited events that led to war.

Explanation:

Countries throughout the world have always made mutual defense agreements with their neighbors, treaties that could pull them into battle. These treaties meant that if one country was attacked, the allied countries were bound to defend them. Before World War 1 began, the following alliances existed:

Russia and Serbia

Germany and Austria-Hungary

France and Russia

Britain and France and Belgium

Japan and Britain

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