Xifengkou, Qianxi, Hebei 河北迁西喜峰口
Xifengkou, in northern Qianxi County, Hebei, is a gap cut through the Yan Mountains by the Luan River. Known in antiquity as Lulong Fort, it was fortified in the Ming and joined to the Great Wall. Late in the Ming, Hong Taiji led the Later Jin army through it into the interior, and during the defence of the Great Wall in the War of Resistance Chinese troops fought the Japanese here. The old pass now lies beneath the Panjiakou Reservoir.