Like in the case of the present war, where the United States is intervening as an “ally” of Ukraine, in the Second Sino-Japanese War the United States entered the war in 1941, becoming the imperialist “ally” of China and started sending direct material aid to China in its war of national liberation against Japan. At the time, a debate emerged between the Socialist Workers Party and the Fourth International on the one hand, and the Workers’ Party on the other.
