By Kris Osborne
The US plans to build 12 new Columbia-Class Submarines, each with 16 missile tubes, and the UK plans to build four nuclear-armed ballistic submarines, each with 12 missile tubes.
The Navy has awarded a $5.1 billion contract to General Dynamics Electric Boat for Integrated Product and Process Development of the COLUMBIA Class submarine, a next-generation nuclear-armed ballistic missile submarines designed to ensure a second-strike capability in the event of a nuclear attack on the United States.
http://nationalinterest.org/blog/the-buzz/the-us-navy-just-signed-deal-build-the-most-powerful-nuclear-22421
