A group of divers have explored the wreckage of a WW1-era Royal Navy submarine - 100 years after it sank. Dominic Robinson, 54, and a team of 10 dived 74m down to check out the century-old HMS M1 sub ...
Operating the world's largest navy by hull count, China possesses combat vessels—including surface warships and submarines—acquired from Russia decades ago, that helped it build sea power capable of ...
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