USS Nebraska Test Firing Sends Powerful Message - plus the US and UK's new ballistic missile submarines

On 26 March 2018,the US Navy's Ohio-class ballistic missile submarine USS Nebraska (SSBN 739) successfully launched two Trident II D5 missiles.The unarmed missiles were part of a Demonstration and Shakedown Operation (DASO) in the Pacific Test Range off the California coast,the US Navy said.According to Captain Mark Benning,Deputy Director of Strategic System Programs (SSP):
The successful completion of DASO 28 was not only an important milestone in USS Nebraska's return to service,but also an important demonstration of the reliable and credible sea-based leg of the US nuclear deterrent triad.*
The primary objective of DASO 28 was to evaluate and demonstrate the readiness of the Nebraska's strategic weapon system and crew before its first operational deployment after its midlife refueling overhaul.The Nebraska is assigned to Submarine Group 9,one of eight Ohio-class submarines homeported at Naval Base Kitsap-Bangor,Washington State.Ballistic missile submarines are an element of the US Strategic Command (STRATCOM).*
DASO 28 was carefully monitored by the Military Sealift Command's USNS Waters (T-AGS 45).Its instrumentation and personnel,including scientists and engineers,tracked the submarine and its missiles through the launch process.*
Both the US and the UK are currently engaged in procuring new classes of ballistic missile submarines.The US is procuring the Columbia-class,which will consist of 12 submarines armed with 16 D5 missiles;while the UK is procuring the Dreadnought-class,which will have 3-4 submarines armed with 8 D5 missiles.The two classes will share a Common Missile Compartment (CMC) design,and the US is providing the UK with technical assistance;while the UK has provided substantial initial funding for the CMC.
The Columbia-class is named for the first submarine in the class,the USS Columbia (SSBN 826),named in honour of the District of Columbia.Procurement of the new submarine will run from 2019-2033,with the first SSBN entering service in 2029,a Congressional Research Service report to Congress indicated.*
General Dynamics (GD)