-=dod_china_gaojiazhuang_b1=- Tunnel Warfare Jizhong Plain Gaojiazhuang 1943 Tunnel Warfare in the Anti-Japanese War, Japanese soldiers and civilians in the North China Plain using authentic methods of combat against the Japanese invaders. Through continuous development, from a single hiding became Fighting to hide, waterproof underground fire anti-virus defenses, and gradually formed a room with room, Street with Street, the village with the village's tunnel network, forming internal and external defense, co- against the enemy. Note: most of the tunnel entrance was unique to the Eighth Route Army. //Anyone who may know the author please contact me so credit may be given. {HK}recon'de'sprayer hellskitchen_dod@yahoo.com