US National Security Advisor Mike Waltz has authorized a "full review" of dozens of career White House officials. This ...

During a telephone call on Jan. 22, NSC employees, known as aides or detailees, were told that they were to leave the office ...

The deployment of North Korean troops to Russia's Kursk region tells much about where North Korean-Russian relations are going.

President Donald Trump says his administration will move to suspend the security clearances of the more than four dozen ...

Their treaty may be a case of "form over substance," and its timing — after Assad's fall and before Trump's return — is key.

President Trump's first national security priorities are to restore the Pentagon's warfighting readiness and reform the ...

The Senate voted to confirm Trump’s choice for secretary of State, and key committees advanced his nominations for defense ...

No one would ever refer to CIA Director William J. Burns as “Wild Bill,” the nickname of William J. Donovan, who led the OSS, ...

The partnership, according to officials who spoke to ABC News, has been essential to Ukraine defending itself as Russia ...

The development of a new generation of drones has revolutionized how wars are fought, according to U.S. officials.

John Ratcliffe, Donald Trump's pick for director of the Central Intelligence Agency (CIA), believes that Russia's war against ...

Ukraine launched a fresh operation in Russia's southern Kursk region, Moscow said on Sunday, after Ukrainian officials and military bloggers reported new attacks from Kyiv in a region where Moscow ...