As Americans scrutinize the accidental leak of a high-level U.S. group chat, several books detail other mishaps in the annals ...

While climbing the ranks of the Soviet spy agency, he spent more than a decade working for British intelligence as one of its ...

During the Cold War, at least one year of military service was an obligatory requirement in most European nations.

Under Donald Trump’s “America First” ideology, US’ engagement with the former Eastern Bloc states is likely to remain limited ...

Building up a nuclear deterrent from scratch is no easy feat, but with the US distancing itself from Europe, the idea has ...

Russia invaded Ukraine. This has left large parts of Ukraine under Russian occupation and hundreds of thousands of military ...

ALEXANDER VINDMAN, a retired U.S. Army Lieutenant Colonel, is Director of the Institute for Informed American Leadership at ...

CHRISTOPHER S. CHIVVIS is Director of the American Statecraft Program and a Senior Fellow at the Carnegie Endowment for ...

The death of Oleg Gordievsky at the age of 86 comes at a moment when relations between his native Russia and his adopted ...