Despite their advanced design, the Alfa-class submarines ... the Soviet Union produced a total of seven Project 705 Lira (NATO reporting name Alfa) nuclear-powered attack submarines.

Russia’s Alfa-class submarine, with its unique titanium hull, is but one example of this Russian submarine prowess. These boats can cruise over 40 knots (46 miles per hour).

Andrew Lewis had similar concerns a year prior, saying that these Russian ... submarines with a top speed of 35 knots when submerged, rivaling the unofficial speed of America's Seawolf-class ...

In fact, these boats could dive as deep as 2,200 feet. Yet, the Soviet Red Navy’s Lira-class submarines never quite became the rage that its designers had envisaged. To further punctuate that ...

With the remarkable level of bloodshed associated with its career, one can see how S-13 earned the admiration of Joseph Stalin.

"In addition to the 10 Borei/Borei-A-class missile carriers and nine Yasen/Yasen-M attack submarines ... has produced five Borei-class submarines for the Russian Navy. Besides, Russia has three ...

SEOUL--North Korea has launched its first operational “tactical nuclear attack submarine ... vessel appears to be a modified Soviet-era Romeo-class submarine, which North Korea acquired ...