Original sentence: Stalin's unwillingness to help the nazi Germany in their war might have been motivated as well by his own strategy based on the belief that he should let Western Capitalist States and the nazi Germany bleed in wars against each other before he would have to fight them
Edited sentence: Stalin's unwillingness to help Nazi Germany in their war might have been motivated as well by his own strategy based on the belief that he should let the Western 'Imperialist' states and Nazi Germany suffer in wars against each other before the Soviet Union would have to fight them