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Foreign Affairs and Defence

My right hon. Friend has just given a helpful new statement of Opposition party policy, although it came to a rather vague conclusion. It seems to me that the alternatives are as follows: the repudiation of a treaty that this country has ratified; an attempt to renegotiate or reopen that treaty; a parliamentary process of some kind; or a referendum. May I ask whether the leadership of the Conservative party has yet taken its thoughts further down that road and decided which of those options it might be veering towards? In the past, we have always accepted treaty obligations accepted by previous Governments whenever we have taken office.