<P> The US Navy has a total of 18 Ohio - class submarines which consist of 14 ballistic missile submarines ( SSBNs ) , and four cruise missile submarines ( SSGNs ) . The SSBN submarines are also known as `` Trident '' submarines , and provide the sea - based leg of the U.S. nuclear triad . Each SSBN submarine is armed with up to 24 Trident II submarine - launched ballistic missiles ( SLBM ) . Each SSGN is capable of carrying 154 Tomahawk cruise missiles , plus a complement of Harpoon missiles to be fired through their torpedo tubes . </P>
<P> The US Navy has a total of 18 Ohio - class submarines which consist of 14 ballistic missile submarines ( SSBNs ) , and four cruise missile submarines ( SSGNs ) . The SSBN submarines are also known as `` Trident '' submarines , and provide the sea - based leg of the U.S. nuclear triad . Each SSBN submarine is armed with up to 24 Trident II submarine - launched ballistic missiles ( SLBM ) . Each SSGN is capable of carrying 154 Tomahawk cruise missiles , plus a complement of Harpoon missiles to be fired through their torpedo tubes . </P>
how many nuclear armed submarines does the us have
how many nuclear armed submarines does the us have
14
14