The sidelining of the Abrams reflects evolving battlefield tactics where drone use has made it virtually impossible for them to maneuver without detection.
"Against All Enemies" explores the link between veterans and violent extremist groups, and what their participation could mean for the future of democracy.
Three-quarters of veterans interviewed by RAND Corp. who expressed extremist ideologies said they had negative experiences during their military service.
Shortly after a strike widely attributed to Israel destroyed an Iranian consulate in Syria, the U.S. had a message for Iran: We had nothing to do with it.