Answer:
Europeans, maybe also Americans.
Explanation:
The Europeans are the most apparent. Britain and Germany were incredibly strong forces in China during and leading up to the Boxer Rebellion. America was also heavily involved. If I had to choose one, I would say Europe, but if not Europe and America were both heavily involved.
<span>Hitler
violated the Versailles Treaty in 1936 when h</span>e
commanded his troops to enter into Rhineland which was a demilitarized zone.
Under the Versailles Treaty, Rhineland was an excluded zone and Hitler’s
invasion constituted a flagrant violation of the pact.