塘沽协定
Rehe was subsequently annexed to Manchukuo. Zhang Xueliang was forced by the Kuomintang government to relinquish his posts for "medical reasons". Chinese forces fell back in disarray to the Great Wall, where after a series of battles and skirmishes, the Japanese Army seized a number of strategic points, and then agreed to a ceasefire and a negotiated settlement (the Tanggu Truce) whereby a demilitarized zone would be established between the Great Wall and Beijing. However, this would prove to be only a temporary respite before the full scale combat of the Second Sino-Japanese War erupted in earnest in 1937.