Members of the U.S. military install multiple tiers of concertina wire along the banks of the Rio Grande near the Juarez-Lincoln Bridge at the U.S.-Mexico border in Laredo, Texas, in November.
Defense Secretary Jim Mattis announced his resignation on Thursday, following a decision by President Trump to withdraw American troops from Syria. He'll be replaced by Deputy Secretary of Defense Patrick Shanahan starting in January.
A border protection officer stands next to a recently upgraded section of fencing at the U.S.-Mexico border in Calexico, Calif., on Friday. The Pentagon says it will send 5,000 U.S. troops to the border.
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The Pentagon only recently made cybersecurity a priority, the Government Accountability Office says in a new report, which found vulnerabilities in weapons that are under development.
Defense Secretary Jim Mattis speaks at the Pentagon Monday. The military received a big boost in funding last week, raising the overall budget to $700 billion this year.
The Bastille Day festivities in Paris last summer gave President Trump the inspiration to call for a military parade in Washington. But the Pentagon says there will be no tanks in its parade in November.
Fitness data collected by the Strava exercise tracking company shows movements of personnel at U.S. and allied bases in Afghanistan and elsewhere, analysts say.
Strava Heat Map; Screenshot by NPR
"Beginning in 2018, our audits will occur annually, with reports issued Nov. 15," Defense Department Comptroller David L. Norquist said in announcing the Pentagon's first-ever audit.
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