asked the Secretary of State for Foreign and Commonwealth Affairs what progress is being made at the conference on security and co-operation in Europe in Vienna; when it is likely to be concluded what input the British delegation is making; and if he will make a statement.

I refer my hon. Friend to the answers that my hon. Friend the Minister of State, Foreign and Commonwealth Office, the hon. Member for Mid-Sussex (Mr. Renton) gave to my hon. Friends the Members for Dudley, West (Dr. Blackburn) and for Cardiff, Central (Mr. Grist) on 18 March at columns 916 and 550. Participants have agreed to aim to complete negotiations by 31 July this year. Our delegation will continue to make a forceful and constructive contribution.