Water buffalo dung to keep the mosquitoes away. Ordinary villagers like Mamasan Tou would set up a security network so the CAP marines could afford the occasional luxury of a nap or a few minutes to write a letter home. The only time a CAP marine left the jungle was when he was rotating home, wounded or dead. Goodson's thirteen-month tour of duty was almost over when he was wounded. He spent several weeks in various hospitals before going home, and facing a whole.