Mark Esper

More attacks from Iranian-backed militia groups may be possible, officials said.

Lawmakers are calling for accountability in the matter.

Defense Secretary Mark Esper confirmed the U.S. was actively considering a drawdown of about 4,000 troops in Afghanistan.

The screening apparently failed to turn up Alshamrani's exposure to jihadist ideology before coming to the U.S.

Defense Secretary Mark Esper wants to boost the number of foreign nationals training alongside U.S. troops by 50%.

His remarks come after a Saudi officer trainee killed three sailors in a Pensacola classroom building.

Lawmakers called on Defense Secretary Mark Esper to clarify the Pentagon's plans.

Democrats and Republicans are split on the Eddie Gallagher case and the Navy secretary's forced resignation.

According to Defense Secretary Mark Esper, Spencer had approached Trump with a deal regarding Gallagher.

Defense Secretary Mark Esper has also directed that SEAL Eddie Gallagher keep his trident.