Is there any speech dialogue on record on Palestine independence day on 1988 given by the United Kingdom Prime minister?
I know that Great Britain was once a proud supporter of Palestine.
Assuming that by "Palestine independence day"you mean the Palestinian Declaration of Independence proclaimed by Yasser Arafat on 15 November 1988, it is a relatively straightforward matter to check Hansard for any mention of
Palestinian around that date.
A search from 2 November 1988 to 2 December 1988 found almost 30 references. None of those references relate to a statement by the then Prime Minister, Margaret Thatcher.
There was a debate on the subject of the Palestine National Council's declaration in the House of Commons on 30 November 1988. The subject of that debate was:
To ask the Secretary of State for Foreign and Commonwealth Affairs what is the policy of Her Majesty's Government towards the Palestine National Council's recent declaration in Algiers.
As is normal on these occasions, the Prime Minister did not speak at that debate. The Minister who spoke on behalf of the government was Sir Geoffrey Howe, the then Secretary of State for Foreign and Commonwealth Affairs.