Question

Why did the Russian troops continue to fight in ww1 after the Russian revolution of 1917?

Answer 1

Although Russia had no formal treaty obligation to Serbia, it wanted to control the Balkans, and had a long-term perspective toward gaining a military advantage over Germany and Austria-Hungary. ... Tsar Nicholas II mobilized Russian forces on 30 July 1914 to threaten Austria-Hungary if it invaded Serbia.

Answer 2

This is because withdrawing would mean admitting defeat and lost natuonal glory as well as international status. Also because that when the alliance with Britian and France (Triple Entente) was formed,they agreed to help one another.