The Cu Chi Tunnels are seventy five miles of interconnecting tunnels that were utilized by the Vietnamese army over the Vietnamese War (or American War because they contact it). They served as hiding places and as routes for interaction and provides. A lot of troopers even lived in these tunnels https://lorenzobefed.mdkblog.com/33646631/the-fact-about-sai-gon-that-no-one-is-suggesting