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The move would open more slots for troops in combat-arms specialties or other warfighting jobs.

The Pentagon is taking steps to ensure that irregular warfare is not forgotten as a critical tool.

A new report says the Islamic State could regain territory if the U.S. withdraws from Syria.

Trump said he asked Mattis to hand in his resignation after growing unhappy with the former defense secretary's performance.

Funding could include the border wall and homeland security, think tank number-crunchers say.

Rep. Adam Smith told Shanahan he is "deeply troubled" by the testimony Under Secretary of Defense for Policy John Rood gave.

The number of suicides matched the high recorded in 2012.

The costs of maintaining active-duty and National Guard troops on the border have risen to at least $235 million.

Acting Defense Secretary Patrick Shanahan on Tuesday downplayed reports that he has shown favoritism toward Boeing Co.

The Defense Department has been asked to conduct expanded surveillance along the U.S.-Mexico border.