First off, there was no South Korea during world war 1. Korea as a whole was neutral and was not involved in world war 1.
Yes - on the side of Persia.
Allies
on the allied side
The other side.
Switzerland was neutral during both World Wars.
The Japenese were on the Japanese side in WW2
They were on our side during World War 2.
East side.
Scotland was part of the Allied Powers during World War 2 .
the allies
allies