From The Australian:
BRITAIN stood ready to give up part of its nuclear arsenal as part of a multilateral deal involving all weapon-holding states, Prime Minister Gordon Brown said.
He promised to consider cutting the number of British operational warheads below the present 160 in a move to kick-start the next non-proliferation talks.
Britain will continue with its plans to modernise the Trident submarine fleet, according to officials. In future there will be three submarines, each with four missile tubes, in operation at any one time, with a fourth submarine in dock on standby.
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My Comment: Even one submarine (not three) at sea with a full complement of nuclear missiles will be enough of a threat.