The Indian class system was a very important part of life. It defined you in most ways, people were born into their castes and could not move up, but they could move down. It is one of the most significant and remembered because it is something that we don't really understand in western civilization.
I hope that helps!
A reason to leave a place
The three nations that were allies of the United States in the war with Japan were "Britain France and China," since Japan was an ally of Nazi Germany, which stood at the center of the Axis powers during World War II.