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.
A comprehensive archaeological survey, using advanced technologies, has concluded that the Ming walls measure 8,850 km (5,500 mi). This is made up of 6,259 km (3,889 mi) sections of actual wall, 359 km (223 mi) of trenches and 2,232 km (1,387 mi) of natural defensive barriers such as hills and rivers. Another archaeological survey found that the entire wall with all of its branches measure out to be 21,196 km (13,171 mi).