"Against All Enemies" explores the link between veterans and violent extremist groups, and what their participation could mean for the future of democracy.
The Navy destroyer Mason shot down an anti-ship ballistic missile over the Gulf of Aden that officials said was likely aimed at a U.S. commercial ship.
Three-quarters of veterans interviewed by RAND Corp. who expressed extremist ideologies said they had negative experiences during their military service.
In March the Navy reportedly engaged with a larger number of anti-ship ballistic missiles and air drones, but fewer surface drones than the month prior.