World War I led not only to grandiose social upheavals, but also to a series of radical coups in military affairs. And the main one was the Great Tank Revolution, which made it possible to overcome the "positional deadlock" of the Western Front. It was in 1914-1918. the tank turned from a "ridiculous toy" into a new "god of war." It was on the battlefields of the First World War that a new kind of troops and the tactics of its combat use were born. It was here that a colossal breakthrough was made in tank business, which for decades determined the nature of modern warfare.