Navy Needs 12 New Stealthy Columbia-Class Submarines To Prevent Nuclear War The Navy is confident that its anticipated fleet of 12 new nuclear-armed Columbia-class ballistic missile submarines Kris Osborn · January 27, 2021 Please leave this field emptyStay Updated with Warrior Maven Subscribe for daily military news and updates delivered straight to your inbox. We don’t spam! Read our privacy policy for more info. Check your inbox or spam folder to confirm your subscription.