Despite statements from Trump that the Islamic State has been "obliterated," ISIS continues to show remarkable resiliency.
The Islamic State West Africa Province has claimed to have killed "dozens" of soldiers in the latest attack.
The attack came in the week that hundreds of Boko Haram suspects went on trial at civilian courts.
The campaign of President Donald Trump released a letter from 235 retired senior officers backing his re-election.
The news comes four years after the Air Force laid out initial plans for what its future fighter jets might look like.
The recent exercises were one of many the Air Force is conducting to test its Advanced Battle Management System.
A veteran of the Marine Corps and Army National Guard, he went through boot camp more than four decades ago.
Cmdr. Robert Arias is at least the third Navy commander removed from his job in recent weeks.