The partnership, according to officials who spoke to ABC News, has been essential to Ukraine defending itself as Russia invaded almost three years ago.

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

Information has played a crucial role in the conflict, with both sides using intelligence to anticipate moves and counter threats. In this environment, the United States continues to seek inside knowledge of the Kremlin’s actions.

President-elect Donald Trump has nominated John Ratcliffe, a former Director of National Intelligence, to head the CIA. And as Burns prepares to leave office, the geopolitical landscape is still deeply volatile with the war in Gaza still raging ...

Trump's pick to be CIA director promised in his confirmation hearing to hone in on setting strong intelligence collection priorities and "demanding relentless execution."

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 agency’s swashbuckling predecessor, during World War II. But the self-effacing Burns has bravely commanded a CIA force in Ukraine since Russia’s invasion nearly three years ago.

John Ratcliffe, President-elect Donald Trump’s pick to lead the CIA, has told members of the Senate that the nation’s premier spy agency can do better

And how do you continue to inflict costs on Russia so that Putin understands that time is not necessarily on his side, which is what I think he believes today. Kelly: As CIA director, I know you ...

And how do you continue to inflict costs on Russia so that Putin understands that time is not necessarily on his side, which is what I think he believes today. Kelly: As CIA director, I know you ...

There’s a certain poetic justice when powerful creatures of the Leviathan who used their immense influence to help sway public opinion in the critical hours of a presidential election are stripped of the coveted badges that name them members of this elite cadre of men.

Ex-CIA head John Brennan discussed President Donald Trump removing his security clearance for his involvement in the Hunter Biden laptop letter on MSNBC.

Despite all the government’s efforts to vet applicants for government jobs requiring security clearances, sometimes the system breaks down. Here are some of the most notorious stories of Americans who sold out vital government secrets to foreign governments.