The intelligence community views four countries as posing the main security challenges over the next year: China, followed by Russia, Iran and North Korea.
A senior administration official said that all U.S. troops will leave Afghanistan by Sept. 11, the 20th anniversary of the terror attacks that prompted America's involvement in its longest war.
With an extensive background in foreign policy and national security, Christine Wormuth would be the first woman to serve as secretary of the Army if confirmed by the Senate.
Brooklyn Center police say the police officer who fatally shot a man during a traffic stop accidentally pulled her gun instead of her Taser. The death sparked clashes Sunday night.
Stewart Rhodes founded the militia in 2009. Now it's one of the largest extremist anti-government groups in the country, and a focus of the investigation into the Jan. 6 attack on the U.S. Capitol.
Lawmakers worked in their districts over the last two weeks but the Capitol was marred by another deadly attack on April 2, reigniting the debate over security and the need for fencing on the campus.
Leading members of the far-right gang known as the Proud Boys are facing federal conspiracy charges in the Jan. 6 attack on the U.S. Capitol. Ahead of the riot, members of the group called for "war."
By law, the government can't monitor domestic Internet traffic. Hackers suspected of being Russian exploited this blind spot by disguising their origins and working through unwitting U.S. companies.
Every unit is holding a "stand down" to talk about extremism in the ranks. But the armed forces are still grappling with fundamental questions of how to define, identify and best deal with it.
Police fatally shot the suspect they say rammed a car into a barrier and then lunged at officers with a knife. One officer was killed, and another was injured.
The Trump administration put the freeze in place last year, saying it was needed to safeguard the job market. But President Biden condemned it, calling it harmful to businesses and individuals alike.
President Biden signed an executive order repealing the Trump transgender ban in his first week in office, directing the Pentagon to begin the process to allow transgender people to serve openly.
The two allies are "collaborating very closely" on a response to Russian-backed cyberattacks, Ambassador to the U.S. Karen Pierce says. And she says the U.K. is still powerful after Brexit.
The massive Justice Department investigation into the Jan. 6 riot is ongoing, but the picture so far shows "small cells" of conspiracy, rather than an overarching one. Here's what's publicly known.