Vietnam redoubt
One of the better books on the Vietnam War on the personal level. The authors were able to interview survivors of both sides of the tunnel warfare which essentially won the war for the Vietnamese communists. Both sexes took part in the warfare, including combat, on the Vietnamese side as had occurred in earlier Vietnamese history. The VC had entertainers to keep up morale, just like the US side. What is interesting is the different attitudes of the American commanders, the CG of the 1st Infantry Division early on figured out the importance of the tunnel system and had special organizations established to combat them (tunnel rats). The CG of the 25th didn't understand their importance, considering them a minor nuisance. Unfortunately for the US, the Iron Triangle was riddled with tunnels and an effective guerrilla organization until TET 68. In the end it was the NVA that took the glory of what was really a Vietnamese southern guerrilla victory.