Government Communications Headquarters
Government Communications Headquarters is named in 4 events across the Capture Cascade Timeline, from 1946 to 2000.
| Date | Event | Lanes | Status |
|---|---|---|---|
| 2000-04-05 | Duncan Campbell Delivers Interception Capabilities 2000 Report to European Parliament, Forces ECHELON Inquiry Duncan Campbell · European Parliament · STOA (Scientific and Technological Options Assessment) · National Security Agency · +1 | confirmed | |
| 1998-10-30 | NSA's Menwith Hill Station UK Expansion Completed, Reaches 1,200+ Personnel and Peak ECHELON Capacity National Security Agency · Government Communications Headquarters · Ministry of Defence (United Kingdom) | confirmed | |
| 1988-08-12 | Duncan Campbell's New Statesman Article First Publicly Names ECHELON Surveillance Network Duncan Campbell · Margaret Newsham · Government Communications Headquarters · National Security Agency · +1 | confirmed | |
| 1946-03-05 | US-UK Sign Secret BRUSA/UKUSA Signals Intelligence Agreement, Foundation of Five Eyes Hoyt Vandenberg · Patrick Marr-Johnson · State-Army-Navy Communication Intelligence Board · London Signals Intelligence Board · +1 | confirmed |
Network neighbors
National Security Agency
3× shared
Duncan Campbell
2× shared
European Parliament
1× shared
Hoyt Vandenberg
1× shared
London Signals Intelligence Board
1× shared
Margaret Newsham
1× shared
Ministry of Defence (United Kingdom)
1× shared
New Statesman
1× shared
Patrick Marr-Johnson
1× shared
STOA (Scientific and Technological Options Assessment)
1× shared
State-Army-Navy Communication Intelligence Board
1× shared