Mike Brest

Mayorkas said they need "additional authorities to address the drone situation" because "our authorities currently are limited, and they are set to expire."

The United States is still the top space power but its adversaries are closing the gap, according to military officials and national security experts.

Canada's Finance Minister Chrystia Freeland resigned from her post over disagreements with Prime Minister Justin Trudeau.

The unexplained drone sightings on the East Coast appear to be a “part of a broader pattern of foreign surveillance and intelligence gathering efforts."

A Russian general in charge of the country's nuclear and chemical weapons protection forces was killed in a bombing in southeastern Moscow on Tuesday morning.

The Pentagon transferred three Guantanamo Bay detainees to their home countries, leaving the number of detainees at the prison below 30.

Trump has said he wants to end the conflict as quickly as possible, which would seemingly entail forcing Ukraine to accept a deal more favorable to Moscow.

The increased number of troops arrived prior to Assad's collapse and were deployed to augment the "core" 900 troops, the Pentagon said.

Russian President Vladimir Putin is ready to meet with President-elect Donald Trump "at any time" to discuss an end to Russia's war in Ukraine, he said Thursday.

President-elect Donald Trump is expected to push U.S. NATO allies to increase their defense spending when he returns to the White House next month.