There was not specifically two main countries in World War 2.
However, the most involved were the United Sates, Japan, U.S.S.R. (Soviets), Nazi Germany, Great Britian, and France was also involved until they surrendered early on in the war.
The USA tried to stay out of WWII, until the USA was attacked at Pearl Harbor.
America and Germany, then America and Japan, were main parties.
France and Germany
Germany,United States,Great Britain,Japan,
the allied powers were the countries that were tossed in the middle of world war one and were asked by the main countries fighting to join the fight and they would hold bargans with the main countries.
All countries fighting in World War 2 used weapons.
the countries were fighting over toys
Because most of the major countries of the world were involved in the fighting.
World War is a war that involves all/or most of the countries fighting in alliances against each other.
Most of the fighting from world war 1 happened in Europe in the countries of Belgium and France. The germans did most of the fighting and invasions.
Germany
world war 1 is the first world war. Nearly all countries were involved in the fighting. The Major countries were Germany France and Brittan
because it was the world war that ended after the first world war. Also referring to world war as a war that has most countries fighting in it.
NewZealnd and Australia were the main countries that were involved