https://www.radiosvoboda.org/a/30335681.html
https://ru.krymr.com/a/chvk-vagnera-protiv-gvardii-sultana/30331998.html
http://www.ng.ru/world/2019-12-17/1_7754_israel.html
https://www.inopressa.ru/article/17Dec2019/fraktuell/uboot.html
https://www.inopressa.ru/article/17Dec2019/washtimes/viktorleonov.html
Nato registriert große U-Boot-Aktivitäten.
https://www.fr.de/politik/putins-machtspielam-meeresgrund-13338172.html
A Russian spy ship is conducting operations off the coast of the Eastern United States and has been engaged in unsafe activities near a U.S. nuclear missile submarine base, according to the Coast Guard.
https://m.washingtontimes.com/news/2019/dec/16/viktor-leonov-russian-spy-ship-operating-unsafe-ma/