"The same problems, of defeat at the hands of Germany, political division and social strain, weakened the Romanovs’ republican Social Democratic replacement, and this weakness provided the opportunity for a Bolshevik (Soviet Communist) coup in Russia later in 1917. The victory of the Bolsheviks over domestic foes and foreign intervention in the subsequent Russian Civil War (1918–21) ensured that their regime would not be short-lived, as for example was Communist rule in Hungary in 1919. The victory also furthered the identification of the Soviet regime with struggle, as well as giving such struggle a specific character. The war provided the regime with a strong rationale for opposition to Western states, notably the leading European empires, Britain and France, as well as the USA and, indeed, Japan."