It was Great Britain, France, Russia, Portugal, Italy, Serbia, Greece, Canada, the United States, Australia, New Zealand, British India, Japan, Montenegro, and Romania against Germany, Austria-Hungary, Bulgaria, and Ottoman Empire.
germany and russia
Germany
germany
Some countries have accurace (or as accurate as possible) records of who fought in their forces in World War I; but some countries for various reasons have little or no records of this information.
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Like anybody cares what countries world war1 was fought am I right?
germany and russia
Germany
germany
Italy and Turkey.
U.K. and italy
The Triple Entente
Some countries have accurace (or as accurate as possible) records of who fought in their forces in World War I; but some countries for various reasons have little or no records of this information.
Japan emerged as a world power, but Germany was weak and humiliated
U.S.A. and France
Many countries declared war, but here are some countries that fought. America, Russia, Britain, France, Italy, and a few more.
the two counties that went to war were Germany and the US.