Searching For Lost Submarines: An Overview of Forensic Underwater Methodologies

CIMSEC – How does one find an object not meant to be found? Forensic maritime investigators in 2017 stumbled across this question when searching for the disappeared ARA San Juan (S-42) – an Argentinian submarine whose mission centered around stealth. Despite the environmental challenges and the restrictions imposed by the profile of submarines, several complementary forensic tools have emerged as authoritative standards and best practices for underwater search operations. These include: (1) optimization of preliminary search boxes through Bayesian probabilities, with updates for posterior probabilities throughout the search; (2) side-scanning sonar systems; and (3) unmanned underwater vehicles (UUVs) for imagery, access, and identity verification. In explaining the efficacies and drawbacks of such methods, this analysis highlights the importance and evolving future of search optimization strategies.

US officials say pact with strategically key Pacific island nations underscores American commitment

AP – U.S. officials stressed Tuesday that newly-approved legislation providing billions of dollars in funding for three strategically important Pacific island nations is an important sign of American commitment, which comes amid warnings China is actively trying to pry them away from Washington’s sphere of influence.

Lessons From Ukraine: Taiwan Eyes 200 ‘Multipurpose’ Drone Boats That Can Swarm Chinese Warships

Eurasian Times – The Taiwanese military is considering purchasing 200 units of an uncrewed surface vessel (USV) that can be used for multiple purposes. These range from a target drone to one armed with interchangeable modules for reconnaissance, surveillance, electronic intelligence (ELINT), and warheads for attack purposes. 

It’s time to appreciate energy’s influence upon sea power

Defense News – There is no more valued attribute, as famed naval tactician Wayne Hughes declared, than “the number of ships … a fleet can have.” But ships must be sustained — something the naval officer Alfred Thayer Mahan recognized nearly a century earlier when he wrote: “Fuel stands first in importance of the resources necessary to a fleet.”

Construction of corvettes for the Ukrainian Navy in Turkey

BMPD – It is reported that on March 8, 2024, during his visit to Turkey, President of Ukraine Volodymyr Zelenskyy visited the RMK Marine shipyard in Tuzla (the southern outskirts of the Asian part of Istanbul), where he got acquainted with the construction of two Turkish-type corvettes Ada (MILGEM) for the Ukrainian Navy. 

(In Russian)

(Thanks to Alain)