A European Nation after WWI an analysis of its political evolution during the 1920's

Pick a European Nation after WWI and describe and analyze its political evolution during the 1920's. What forces for change did the war unleash that played out in the decade? Or, were the political practices in the "Twenties" underway before the war and accelerated by it? Suggestions for coverage: Communist Russia; Weimar Germany; Fascist Italy; Great Britain or France.