雁门关
During the Second Sino-Japanese War (the Chinese theater of World War II), He Bingyan led the 716th Regiment of his 358th Brigade of He Long's 120th Division of the Eighth Route Army in an ambush the Imperial Japanese Army forces at Yanmen Pass on 18 October 1937 as part of the ongoing battles of Xinkou. The regiment killed 300 Japanese and destroyed 20 vehicles, then held the area as part of an attempt to cut Japanese lines of supply and communication as they pushed forward to Taiyuan. There was a skirmish during the night of 20 October, then an assault on a second supply column the next day. This supposedly took out around 200 Japanese and "hundreds" of vehicles. The Japanese were then obliged to begin air assaults and dedicate the Ushiromiya Division to push He's men further north.