This 21 July 2004 article from the internal NSA newsletter SIDToday desribes the opening of the NSA’s facility at Yokota Air Base, which was largely funded by the Japanese government: see the Intercept article Japan Made Secret Deals With The NSA That Expanded Global Surveillance, 24 April 2017.
This undated GCHQ report from the agency’s Cyprus (GOLF) division, describes, in technical data, the S455N signals sent out by Israeli drones: see the Intercept article Spies in the Sky: Israeli Drone Feeds Hacked by British and American Intellience, 29 January 2016.
This March 2008 post from the internal NSA newsletter SIDToday, describes the Menwith Hill station’s success in intercepting the video feeds from Israeli F-16 fighter jets and drones: see the Intercept article Spies in the Sky: Israeli Drone Feeds Hacked by British and American Intellience, 29 January 2016.
This two-page extract from a longer, undated, GCHQ document describing its presence in Cyprus, states that “Under the ECHELON Agreement, NSA provides 50% of the funding for the SOUNDER Comsat facility”: see the Intercept article GCHQ and Me: My Life Unmasking British Eavesdroppers, 3 August 2015.
This GCHQ presentation from 2011 provides the background to the agency’s hacking attack on Belgacom: see the Intercept article Operation Socialist: The Inside Story of How British Spies Hacked Belgium’s Largest Telco, 13 December 2014.
This undated NSA slide provides the locations of FORNSAT sites run by the agency and its Five Eyes partners worldwide: see the Der Spiegel article The NSA in Germany: Snowden’s Documents Available for Download, 18 June 2014.