In the course of instituting government policy, Stalin promoted the doctrine of Socialism in One Country (adopted 1925), wherein the USSR would establish socialism upon Russia's economic foundations (and support socialist revolutions elsewhere). Conversely, Trotsky held that socialism in one country would economically constrain the industrial development of the USSR, and thus required assistance from the new socialist countries that had arisen in the developed world, which was essential for maintaining Soviet democracy, in 1924 much undermined by civil war and counter-revolution. Furthermore, Trotsky's theory of Permanent Revolution proposed that socialist revolutions in underdeveloped countries would go further towards dismantling feudal régimes, and establish socialist democracies that would not pass through a capitalist stage of development and government.