Updated. Originally posted 7th November 2014
Daring underwater escape from East Germany
There were many fantastic and inspiring escapes across the Iron Curtain during the Cold War. With the odds stacked against anyone even trying to escape, it often came down to ingenious contraptions to exploit weaknesses in the defenses. One of the most impressive examples was Bernd Boettger's 1968 escape by home-made diver propulsion device (DPV)
All articles
SBS_Archimedes_SDV
British SBS Archimedes swimmer delivery vehicle
During the undeclared war between Indonesia and Malaysia in 1963-66 (known as the Indonesia Confrontation),an official requirement was raised for the SBS to be ready to conduct underwater sabotage missions against enemy ships in harbor... Read More >....
India-Pakistan_Submarines
Iran_SLCM_video_analysis
Revised
Iran's Jask-2 submarine launched missile
On the third day of Iran’s Velayat 97 exercises, the Iranian media published reports that a cruise missile had been demonstrated aboard an IS-120 Ghadir Class midget submarine. This article disects the footage...
Royal_Navy_Littoral_Strike_Ships
Updated. Originally posted 12th Feb 2019

Littoral Strike Ship
On 11th February 2019 British Defence Secretary Gavin Williamson announced the concept and development phase of a new class of amphibious warfare vessel to support the Royal Marines, and by inference, Special Forces. The new vessels will operate close to enemy shores and be termed Littoral Strike Ships... 
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Poseidon_Torpedo
Updated

Russian Poseidon Intercontinental Nuclear-Powered Nuclear-Armed Autonomous Torpedo
Poseidon is the largest torpedo ever developed in any country. Countering this system is will force Western planners to reconsider anti-submarine warfare (ASW) and undersea sensor/weapons investment.... 
SAROV-Class_Submarine

Originally posted 9th Sept 2014.
Sarov Class submarine demystified
The Project 20120 Sarov Class submarine is critical to Russia’s development of the new KANYON (Status-6) nuclear armed nuclear powered strategic weapon. This submarine has kept analysts guessing. Trying to decipher her unique form and curious appendages merely adds to the mystery. She is a boat which is not well documented, and many illustrations of her turn out to be quite misleading. The same can be said of much of the early analysis which still affects write-ups on the subject.
G20_Gyroplane
The submarine launched helicopter from 1930s
When the French submarine Surcouf entered service in 1934 it was the first in the world with an aircraft capability designed-in. It’s compact MB.411 floatplane, which folded to fit inside the integral hangar, was a work of art. But French aviation designer René Dorand had an even more ingenious solution to deploying aircraft from submarines...
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US_Navy_North_Korean_Submarine
WSTTT: US Navy's North Korean midget submarine
In May 2004 the US Navy 'sunk' a North Korean Sang-O Class midget submarine as an underwater target off San Clemente Island, California. In fact it was the purpose-built WSTTT (Weapon Set-To-hit Threat Target)...
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Kairyu_Midget_Submarine
Imperial Japanese Navy 'Kairyu' Class midget submarine
In the final months of World War Two, the Imperial Japanese Navy prepared a vast fleet of midget submarines to defend the home islands. Many of these designs crude and reflected the desperation of the times, but one design stands out...
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High-resolution poster of submarines in service with Indian ad Pakistani Navies.... 