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.
Construction Time For All of the Walls. If all the fortified walls that were built by the different dynasties and kingdoms around northern China are included, the total length would exceed 2 0,000 kilometers (12,000 miles) . All these walls together were completed over a period of 22 centuries.