Russian Navy deployed Marine Mammals to Defend Base in Syria 
The Russian Navy deployed marine mammals to Tartus in Syria during September-December 2018. The animals, most likely seals, were positioned next to the harbor defense units.. Read More >....
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U212-AIP-Submarine
Update: Originally posted Apr 25 2020
Stealth & sophistication: Type-212 submarine 
The Type-212 class has a reputation for sophistication, largely thanks to its first-use of Fuel Cell AIP (Air Independent Power). It is considered the elite model in the German submarine design list, above the later Type-214 and Type-218 products. The design is interesting in a number of ways. ...
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Submarine-Tunnels
Covert Shores World Guide to
Naval Tunnels to Hide & Protect Submarines
There are a surprising number of tunnels built to protect submarines (and/or warships) from surprise attack. Today the main users are China, North Korea and,... Sweden. But there are many other examples around the world, sometimes disused, sometimes so secret that they remain unconfirmed... 
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German-WW1-Type-UC-1-U-Boat
Forgotten Super-Weapon of WW1: Type UC-1 Uboat Mine laying submarines are largely forgotten in spite of being one of the most successful weapons of the war. This article will focus on the first German type, the UC-1 Class. It was an elegant, innovative and effective design.... 
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Chinese-Navy-CV-003-Aircraft-Carrier-progress
IMINT shows progress on Chinese CV-003 carrier Image analysis of China's 3rd aircraft carrier should steady preparations towards launch...
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Italy-COMSUBIN-SDVs
COMSUBIN reveal underwater vehicles Finally, COMSUBIN has shared high quality imagery of some of their historic underwater vehicles...
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Nordenfelt-submarines
Upated Covert Shores Guide to
Nordenfelt steam submarines (1880s) 
The Nordenfelt submarines of the 1880s are an underappreciated part of submarine history. They were midway between the human powered submarines of the American Civil War and the gasoline and diesel boats of the 1900s. Much of their technology was ground (sea) breaking...
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LTTE-Tamil-Tigers-large-semi-submarine
The LTTE "narco submarine"
This large low profile vessel (LPV, aka semi-submersible) which appears to be designed for cargo. In many respects the craft is similar to the "narco submarines" used by Colombian cartels....
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Iran-deploys-Missiles-and-MLRS
Iran deploys MLRS and anti-ship missiles to Strait of Hormuz Videos are emerging of Iranian rocket and missile systems lined up along beaches, apparently to cover the Strait of Hormuz. They appear to show an assortment of systems including Fajr-5, Fajr-3 MLRS and a Khatam-5 anti-ship missile launcher...
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Narco Subs 101
Covert Shores Guide - updated
Narco submarines
Nacro submarines are increasingly sophisticated. This article lays out the main categories and give examples.Read More >....