A long and bloody Civil War ensued between the Reds and the Whites, starting in 1917 and ending in 1923 with the Reds' victory. It included foreign intervention, the execution of the former tsar and his family, and the famine of 1921, which killed about five million people. In March 1921, during a related conflict with Poland, the Peace of Riga was signed, splitting disputed territories in Belarus and Ukraine between the Republic of Poland and Soviet Russia. Soviet Russia had to resolve similar conflicts with the newly established republics of Estonia, Finland, Latvia, and Lithuania.