World War I (referred to as World War I for short,1965438+August 2004-1965438+October 2008 10) was a world war that mainly occurred in Europe but spread all over the world. At that time, most countries in the world were involved in this war, which was one of the most destructive wars in European history.

Nature: World War I was an unjust imperialist predatory war. Except for a few countries such as Serbia, which have the just nature of national liberation and self-defense, other countries are unjust. Their justice cannot fundamentally change the nature of the whole war.

The root cause: the imbalance of capitalist political and economic development.