Sergeant John Cooper was one of four soldiers killed earlier this month in Mosul when a roadside bomb hit their vehicle.
Family, friends and supporters gathered at Fleming County High School in northeastern Kentucky to remember Cooper. His brother told gatherers he feels a swelling of pride when he thinks of Cooper's service.
Terry Cooper says his brother's death made him feel a pride he's never felt before.
Cooper's two young nieces read poems at the service, and a group of patriotic motorcycle riders also attended.
Cooper was awarded the Bronze Star, the Combat Infantry Badge and a Purple Heart after his death.