Central Intelligence Agency (CIA)
Graham Greene, Arthur Ransome and Somerset Maugham all spied for
History and aims of the Office of Naval Intelligence
Spec Ops Profile: Intelligence Support Activity
Office of Naval Intelligence Archives - USNI News
Nimitz Warfare Analysis Center
Office of Naval Intelligence - Halopedia, the Halo wiki
There's more than the CIA and FBI: The 17 agencies that make up
Five Eyes alliance remains tight-lipped on how it's collaborating
Office of Naval Intelligence - Halopedia, the Halo wiki
Graham Greene, Arthur Ransome and Somerset Maugham all spied for