HC Deb 07 February 1985 vol 72 c678W
Mr. Murphy

asked the Secretary of State for Defence what alternative strategic nuclear deterrent systems for the United Kingdom other than Trident he has evaluated since 1983; and if he will make a statement.

Mr. Butler

None. As described in open government document 80/23 "The Future United Kingdom Strategic Nuclear Deterrent Force" and 82/1 "The United Kingdom Trident Programme", a number of alternative weapons systems were considered before the decision was made to purchase Trident II D5, which the Government believe to be the most cost-effective choice.

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