Despite new rules, racism still a concern with service members not barred from membership of groups such as KKK; Black, Hispanic service members disproportionately court-martialed

By all accounts, the militants have captured a huge trove of advanced equipment, vehicles, aircraft and guns supplied to Afghan forces over the years to the tune of billions

Incident takes place just steps from US defense headquarters; train ordered to bypass terminal, public asked to avoid area

US Department of Defense officials say temporary stop to meetings was a mutual decision, a claim rejected by incoming administration: 'There's no time to spare'

Proposal would require DOD to consider transferring long-sought munitions capable of penetrating Iran's underground nuclear infrastructure, but move faces considerable hurdles

After a single day on the job, Mark Esper to meet with fellow NATO defense ministers as US seeks to enlist countries to counter threats to shipping in Persian Gulf