Category
page 1World War I espionage
Mata Hari
Dutch exotic dancer, courtesan and spy (1876-1917)
His Last Bow
short Story by Arthur Conan Doyle
Room 40
cryptanalysis department
The Garden of Forking Paths
1941 short story by Jorge Luis Borges
Naval Intelligence Division
intelligence agency
Niedermayer-Hentig Expedition
diplomatic mission to Afghanistan sent by the Central Powers in 1915–1916