World War 2, as the name suggests, involved almost the entire world in some fashion. You will have to be more specific about the "other side". The war was actively fought throughout Europe, Africa, Asia, and the Pacific.
The other side.
A moonless night.
Other Side of the World was created in 2004.
Allies
There are basically three ways to get to the other side of a mountain. If a tunnel is present, you can go through. If not, it's either go over by going up one side and down the other, or going around the mountain to get to the other side.
Switzerland was neutral during both World Wars.
on the allied side
It would be 6:00 on the other side of the world.
There is none; at the other side of the world from Mexico is the Indian Ocean.
That depends on where you live. If you live in North America then yes, Asia is on the other side of the world.
No. There is no way to fight cross-realm other than battlegrounds. During battlegrounds, there is no telling who is going to show up for the other side.
The Japenese were on the Japanese side in WW2