Сталин против Троцкого

The struggle of two Soviet leaders - Joseph Stalin and Leon Trotsky - largely predetermined not only the development of our country, but also the world history of the 20th century. Some see in this confrontation only a socio-political component, a clash of two grandiose "projects", while others, on the contrary, reduce everything to the struggle of specific people for power. Trotsky is a bright public person of the "bohemian type", a brilliant orator, a lover of external effects, a politician who did not know how to calculate the results of his actions. And Stalin - outwardly ineffectual, secretive, stubborn, for the time being avoided publicity, calculated his actions many steps ahead, a master of political combinations. What exactly did these two strong and completely different leaders not share? Why couldn't they be united even by a passion for kindling a world fire? And was their confrontation really based only on ambitions and personal grievances?