Sea Power – A single Ohio-class guided-missile submarine (SSGN) will be armed with 154 Tomahawk cruise missiles. That is more cruise missiles than are now carried by an entire carrier strike group, and almost 20 percent of the 800 Tomahawks fired by a cadre of coalition submarines and surface ships during Operation Iraqi Freedom. The Navy is obtaining four SSGNs, a step that will substantially increase the offensive power of the fleet.