They were all trying to attack and utterly yet bruttaly destroy the other sides allegiance~a.k.a Axis try to destroy Allies, Allies try to destroy Axis.
During WW II all four of those countries were ruled by dictators. I would go so far as to call them evil dictators.
In WW II the three Axis powers, and the dictators who ruled them, were: Germany, ruled by Adolf Hitler Italy, ruled by Benito Mussolini, and Japan, ruled by Hideki Tojo (who was acting theoretically on behalf of Emperor Hirohito).
No, it was not WW II.
During WW II when democracies were at war with fascist dictators, the US had a huge industrial capacity, and was able to produce the weapons and munitions needed to fight.
WW II was largely the result of lingering resentment by Germany about the outcome of WW I. You could describe it in sports terminology as a rematch.
There is no world war you. Your choices are WW I and WW II. The treaty which ended WW I was the Treaty of Versailles. WW II did not have a treaty as such, atlhough the Yalta Conference did produce an agreement.
There were no Russian "dictators". The closest was Tsar Nickolas II followed by Iosef/Joseph Stalin.
Was created by the UN.
The most important different between WW I and WW II is there is a lot modern weapons and atomic bombs are used in WW II.
Was created by the UN.
No.
20th century: 2nd Balkanic war, WW I, WW II