In late September, Pershing led the AEF during the final Meuse-Argonne Offensive which broke the German lines and led to the end of the war on November 11. By war's end, Pershing's command had grown to 1.8 million men.
Dimensions of Castle Walls: the height and thickness of castle walls varied from castle to castle but typically they ranged from between seven to thirty feet in thickness and typically thirty to forty feet in height. The illustration below is a cutaway view of how a typical castle wall is constructed.
The walls were built of alternating layers of stone and brick in two lines of defense which adjoined the ditch. The Inner Wall (Eso Teichos or Mega Teichos, Great Wall) was a solid structure, 5 metres thick and 12 metres high.