This book covers the history of the creation and evolution of British armored vehicles during the First World War. We will focus on the most significant models of tanks and armored vehicles of this period. Tanks appeared an attempt to break the stalemate of a positional war. Machine guns and quick-firing cannons swept the advancing infantry units clean. Neither the long-lasting artillery preparation nor the flamethrowers and chemical weapons tested by the Germans helped. It urgently required an armored combat vehicle capable of acting directly on the battlefield, suppressing the enemy's firing points, and paving the way for the infantry through wire fences.