Sergeant Dongan replaces Sergeant Simpson when Simpson’s tour of duty ends. He’s from Indiana although he looks, talks, and thinks “Southern,” according to Perry. He quickly befriends the other white soldiers on the squad, Walowick and Brunner, while expressing his distaste for Lobel (on the assumption that Lobel is gay); Peewee, Johnson, and Perry (because they are Black); and Monaco (because he is Italian). Nevertheless, he earns Perry’s grudging respect for his battle smarts. He dies on the join mission with ARVN soldiers to take a strategic hill.