Introduction to the Chuandong Anti-Japanese War Site: Libo Chuandong was the only place to enter Yongkang County during the Anti-Japanese War. It was also the place where Libo soldiers and civilians fought against the Japanese invaders in 1944 and blocked the Japanese invasion of Libo, threatening Duyun and Guiyang. The main battlefield of the cave can still be seen in the cave. The military fortress left behind from that time can still be seen in the cave. Through the cave, you can go directly to the back of the mountain. It is the only place for local villagers to walk into the county town.