China's been steadily upgrading its submarine fleet and weapons to detect those of the US should the two nations go to war.

South Korea's prime minister put his political weight behind his country's multibillion-dollar bid to sell Canada submarines. Kim Min-seok accompanied his Canadian counterpart, Mark Carney, on a tour of the Hanwha Ocean Ltd.

China’s industrial base has, for several years, been far outstripping the productive capacity of the West, delivering four submarines in the past year. Such a rate is wishful thinking for Europe and the United States, with the US struggling to produce two nuclear submarines over a 12-month period, and the UK and France still further behind.

Spotting Russian Navy submarines in the Arctic isn't an all-too-common sight, but last week, a Russian Kilo II-class diesel-electric boat surfaced someplace truly unexpected – namely the West Philippine Sea. According to sources with the Philippine Navy ...

Hundred of people cheered on the USS Cobia as it returned home to Manitowoc on Wednesday afternoon. The World War II submarine had been in Sturgeon Bay for about

Over eight decades ago, the US Navy made the historic capture of a Nazi U-boat during World War II. A treasure trove of vital German intelligence, the submarine's capture was top-secret. See inside the U-boat, now a permanent exhibit at Chicago's Griffin ...

President Trump declined Friday to say whether the U.S. will resume underground nuclear weapons testing, which ended in 1992, saying only, “You’ll find out very soon.”