What caused the feud between trotsky and stalin

Leon Trotsky, a leader of the Bolshevik revolution and early architect of the Soviet state, is deported by Soviet leader Joseph Stalin to Alma-Ata in remote Soviet Central Asia. He lived there in internal exile for a year before being banished from the USSR forever by Stalin.(hope this helped)

the dominoes began to fall. the surrender at appomattox took place a week later on april 9. while it was the most significant surrender to take place during the civil war, gen. robert e. lee, the confederacy's most respected commander, surrendered only his army of northern virginia to union gen. ulysses s. grant

explanation:

because he created electricity