Local law enforcement officials “want to cooperate with us,” says John Kelly.
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James Mattis says he’s made no decision on adding troops, but warns of a confrontation if Russia continues to arm the Taliban.
Any nuclear weapon exchange or major nuclear plant meltdown will immediately lead to a global public health emergency. What can we learn from past events to help prepare?
No, Mike Pence, the "era of strategic patience" is not over
The warning comes as the Pentagon begins an extensive review of its nuclear arsenal.
A bipartisan measure would repeal unpopular Pentagon restrictions adopted in 2014.
Upholding the norm against their use helps the U.S. win wars.
Plodding bureaucracy could leave government outgunned in cyberspace, Gen. John Kelly said in his first major address as secretary.
As tensions rise in East Asia, they highlight the dangers of Trump’s unpredictability.
He has changed gears bigly when it comes his position on military intervention.