Chinese and Korean defenders concentrated about 13,000 to 15,000 troops at Pyongyang in an effort to halt the Japanese advance. Japan used amphibious movement to bring separate forces against the position from several directions, including the rear. The converging attack turned maritime mobility into a land-campaign advantage and forced the defenders north toward the Yalu River. Shipping, advance preparation, and coordinated logistics mattered as much as the armies' nominal battlefield numbers.
Chapter · 2:23:44-2:27:24
Pyongyang and amphibious convergence
Japan used maritime mobility to converge on Pyongyang from several directions and drive Chinese forces toward the Yalu River.