During World War I, they were at war from 1914 until 1918. During World War II, it was 1941-1945.
During World War 2 they fought for 5 years.
World War 1 Germany invaded Russia in 1917 after Russia backed out of the war. World War 2 Germany invaded Russia during the Second World War on June 22, 1941 Operation Barbarossa
Germany declared war with Russia on 1st of August 1914 & in WW2 on the 22nd June 1941.
Yes after Russia declared war on Austro-Hungary. (Germany's ally)
Russia was not an ally of Germany in World War 1.
Russia had a revolution going on
Because communists took over the control of Russia from the Tsar. Communists were against war with Germany and hence agreed to end the war with Germany after they took the reign of Russia.
Germany had an agreement to go to war if Austria-Hungary were to be attacked by Russia. Alliances like this were a main cause that brought many countries into WW1.
It was Germany who declared war on Russia on June 22 1941
== == Russia and Germany were never allies during World War I. They were on opposite sides from the beginning.
....Russia and France were partners in an offensive/defensive treaty they had concluded earlier. So declaring war on Russia according to the Treaty 'automatically' meant that a state of war came to exist between Germany and France.
France Supported, Russia because of a pact they have made and are very good importing/exporting partners.But, France said that France will only support Russia if Germany attacked first .However, Unaware of the Russian-french pact Germany attacked.