The assassination of Archduke Franz Ferdinand and in time, it involved most of the world.
Many will agree that the war started September 1, 1939 when Germany invaded Poland.
No, it was a factor, but the main cause of WW2 was, surely, WW1.
Gavrilo Princip is the main person who is believed to have started World War 1. He was a Serbian who was involved in a chain of reactions which culminated in WWI.
Germany Was the main cause of WWII. France, UK got involved and then the USA. And lots of Jewish Countries.
Who knows. But I do know that It started on July 28, 1914 when Austria-Hungary declared war on Serbia which was the main cause of WW1 or to say 'THE GREAT WAR'.
NewZealnd and Australia were the main countries that were involved
The main countries involved in World War 2 (1939 - 1945) (there were a lot more countries involved, but these are the major ones): Germany, Russia, Britain, United States, France, Italy and Poland. The main countries involved in the Cold war (started roughly in the late 1940s): United States, USSR (Russia), Britain
The main cause of WW1 was the assassination of Archduke Franz Ferdinand.
It was the main cause
Cause he smells
There are a number of powers who were involved in the World War 1. Russia, Germany and France were the main countries in the war among others.
Heat and Water