Axis powers
Yes, people tend to forget that Italy, Japan, Hungary, Romania, Bulgaria, Yougoslavia, Czechoslovakia, as well as several other 'co-belligerent' and friendly states such as Finland, Thailand and Burma were on the same side. This includes the occupied countries of the Japanese such as Korea and Manchuria.
60% of the Waffen-SS were foreign volunteers.
The Spanish and French even had divisions which fought in the Wehrmacht uniform except with different flags on their arms.