A series of powerful earthquakes struck off the coast of Russia’s far east on Sunday, triggering a tsunami alert, the US Geological Survey said. Earlier 5.0-magnitude and 6.7-magnitude earthquakes did not initially trigger a tsunami alert, but were ...

Completion of mass production of the Poseidon nuclear torpedo marks a shift in strategic deterrence and maritime warfare doctrine. Developed under Russia’s 2018 “Invincible Weapons” initiative, Poseidon combines a compact nuclear reactor for years-long autonomous operation,