The Main Directorate of Deep-Sea Research (Russian: Главное управление глубоководных исследований, transcribed as Glavnoye upravlenie glubokovodnikh issledovanii or GUGI), is a Russian agency belonging to the Armed Forces of the Russian Federation. It is one of the most secret parts of the navy.[1][2] Its objective is to operate submarines that are able to dive deep into the sea, in order to gather intelligence or to work with installations on the seabed, including sabotage.[3][4][5] Its original target was the Western surveillance systems of submarines from the Soviet Union[6] and it is able to eavesdrop and sever the fiber optic cables crossing the seas.[7][8]
It also tests emergency equipment and does medical research on the physiology of diving.
The year of creation of the directorate is uncertain. 1963 (as military unit 90802), 1965,[9] and 1976 have been mentioned.[3]
The directorate is directly subordinate to the Ministry of Defense.[10][6] It is located separated from the normal navy bases, with its headquarters in Saint Petersburg and a naval base in Olenya Bay on the Kola Peninsula.[3]
^Bendelin, Simon (12 Sep 2016). "Ryska styrkor kan kapa Gotlands kablar". Gotlands Tidningar: 2. den ryska havsforskningsorganisationen Gugi i själva verket ägnar sig åt spioneri och sabotage. Deras huvudsyfte ska vara att kunna slå ut infrastruktur genom att klippa av viktiga överföringskablar på havsbottnarna.
^Holmström, Mikael (25 Aug 2016). "Ryska ubåtar kan slå mot internet". Dagens Nyheter: 16.
^ abvon Braun, Joakim (1 Oct 2022). "Säkerhetsexpert: Nordsjöns och Atlantens ledningar är mycket sårbara". Blekinge läns tidning.
^Töpffer, Michael (25 Aug 2016). "RYSK MILITÄR KAN SLÅ UT INTERNET". Expressen: 12.
^Stenlund, Peter (6 Jan 2020). "Ur en bekymrad europés perspektiv". Hufvudstadsbladet: 21.