In this 16 October 2012 post from the NSA internal newsletter SIDToday, an agency staffer from NSA’s Hawaii station describes an incident in which NSA assisted in stopping a vessel engaged in illegal drift-net fishing by tracking a satellite phone on board: see the Intercept article The NSA’s Role in a Climate-Changed World: spying on nonprofits, fishing boats, and the North Pole, 15 August 2018.
This 2006 post from the NSA’s internal newsletter SIDToday describes an annual planning meeting between Norway’s Intelligence Service and the NS
see the Intercept article Norway Used NSA Technology for Potentially Illegal Spying, 1 March 2018.
This 13 March 2007 article from the internal NSA newsletter SIDToday describes cooperation between the US and Japan in sharing information from airborne reconnaissance: see the Intercept article Japan Made Secret Deals With The NSA That Expanded Global Surveillance, 24 April 2017.
This NSA classification guide, dated 21 November 2011, covers signals intelligence material that as to be kept secret for more than the standard 60 years: see the Der Spiegel article The NSA in Germany: Snowden’s Documents Available for Download, 18 June 2014.