Because of how the system of allies was, if one country declared war on another, the allies of both countries would join the war as well, to support their allies. This led to a chain event during World War I. Many countries simply got involved because they were allies with another country and had promised to defend them.Example:Austria and Serbia had been the first to go to war. Germany joined soon for it was an ally of Austria. The same goes for Russia with Serbia as well as many other nations.
Britain, USA and Canada were the main allies.
Axis (Nazi Indenpendent State of Croatia), and later Allied (when partisans conquered the country and formed Yugoslavia together with other Balkan countries)
China was with the allies as it had been invaded by Japan.
usa germany italy
the soviet union (Russia)
During World War 1, Norway was a neautral country. During World War 2, Norway was a part of the Allies.
spainSpain did not change alliances. It was neutral during both wars. However, Italy was an Allied Power during World War I and opposed the Allies as an Axis Power in World War II.
Italy changed its alliance. Italy wanted to stay neutral, because their alliance was supposed to be defensive, not offensive. Italy changed sides later in the war because the Allies offered them new territory if the Allies were to win World War I.
The Japanese who were our allies at the time.
The Allies invasion of Normandy France during World War 2 on June 6, 1944 the victory that followed changed the war into the Allies hands
Yes
Yes. Unless you count Russia leaving the allies in 1917.
Norway's allies were Britain, and the allies including the U.S.
During WW II the US was allied to England, France, Russia, Canada, & Australia.
The Netherlands were Allies in World War II.
The Allies