Two months before the Civil War ended, a Confederate soldier was tried in a New York City courtroom for espionage—and for trying to burn down the largest city in the Union.

Stuart monarchs were repeatedly challenged by dangerous threats—a gunpowder plot, a civil war and political revolution ...

Southern women took sides in the Civil War. For some women, this meant becoming spies. While most white spies, like Alice Green, used their training as southern belles to support the Confederacy ...

Spies broadly fall into two categories ... That makes them Russia's "most prized assets", said The Guardian. During the Spanish Civil War, Soviet agents stole passports from foreigners who ...