Plan 1919

Plan 1919 was a military strategy drawn up by J.F.C. Fuller in 1918 during World War I. His plan criticised the practice of physically destroying the enemy, and instead called for tanks to rapidly advance into the enemy's rear area to destroy supply bases and lines of communication, which would also be bombed. He suggested a lightning thrust toward the command center of the German Army:

The Allied advance and German retreat across France and Belgium in 1918 had begun to show some of the pace and aspects that would mark later mechanized warfare; British tanks played an increasing role, and German rear-guard defenses focused on stopping their advance. Although never implemented, Plan 1919 would have carried these trends forward earlier, and can be said to have formed the basis for later blitzkrieg tactics and the Soviet theories of Deep Battle and Deep Operations.

By 1918, the German, French and British armies had been through years of trench warfare and were getting close to the breaking point. Both sides realized that a new form of warfare was needed for the successful conclusion of the war. Tanks, although used unsuccessfully at the Battles of the Somme and Passchendaele, were used in the Battle of Cambrai and demonstrated their usefulness. Although the main objective was not achieved and the German artillery made short work of them after the initial shock wore off, they inspired military theorists to try to incorporate them properly.

In the spring of 1918, J.F.C. Fuller submitted a study titled "The tactics of the attack as affected by the speed and circuit of the Medium D tank", a bold new plan involving tanks and air support that aimed to target the German leadership and supply lines, as opposed to the then current tactic of grinding away at the main forces.

Fuller's plan had three elements. The first was a fast attack by medium tanks and aircraft against the German headquarters, removing its ability to control their forces. Then the main assault by heavy tanks, infantry and artillery would make break the German lines. Finally cavalry, light tanks and infantry mounted on trucks would follow the retreating Germans preventing them from reforming or counterattacking.

...
Wikipedia