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Volume 202: debated on Tuesday 21 January 1992

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To ask the Secretary of State for Defence what is the implication of the United States decision to research, develop and test an alternative propellant for the D5 missile for the in-service date of the United Kingdom Trident system.

I am not aware of any plans by the United States to develop an alternative propellant for use in the Trident II D5 missile.