Russia was not an ally of Germany in World War 1.
== == Russia and Germany were never allies during World War I. They were on opposite sides from the beginning.
Germany failed to renew their treaty or promise they made with Russia in 18 something or other. therefore Russia was free to ally with the Allied forces(countries lke England, France, etc.)
In WW 2, simply by betraying them by unilaterally breaking the the Ribbentrop-Molotov Pact between the two countries.
The British and French did not want to lose a potential ally in the war against Germany. They were shocked after the Molotov- Ribbentrop pact between Germany and the USSR.
To help France and Russia defeat Germany. Britain wanted Germany to lose WWI, so they joined France and Russia. Britain was worried that if Germany won WWI, they would be too powerful for England to defeat by themselves, so they joined France and Russia and declared war on Germany.
Australia has not lost Britain as an ally.
It brought in the Americans on the side of the Allies. But the biggest cause of Germany's defeat was their decision to invade Russia.
One major loss for Germany In World War Two was in Stalingrad,
the world was winning and Germany was sufering the loss of food and suplies
Germany lost two times . Germany lost by Spain and Serbia.
Well they made an agreement with Germany when Germany invaded Poland. The agreement was Russia does not attack Germany and Germany gives a part of Poland to Russia. Then in 1941 Germany invaded Russia after the surrender of France. Russia was about to lose Moscow(capitol city), Stalingrad(major industrial city), and Leningrad(only port left in the Baltic Sea). But each was a German Major defeat especially at Stalingrad where the entire 6th German Army was surrounded and destroyed. After that the Russians just stepped over the Germans one city after another when finally Berlin was invaded by the Russians and taken.
Poland and finland
World War II, during the holocaust.
Baltic Poland, Bessarabia
Germany! Actually, it was Russia, the country with the most people and, thus, the most people to lose.
In World War One, Germany lost primarily to the allies, Great Britain, France, and the United States.