The Balfour declartion stated, "it being clearly understood that nothing shall be done which may prejudice the civil and religious rights of existing non-Jewish communities in Palestine ".
Following the genocide of 6 million Jewish people, on an industrial scale and not just by the Germans, The United Nations adopted Resolution 181 (also known as the Partition Resolution) that would divide Great Britain's former Palestinian mandate into Jewish and Arab states in May 1948.
From there David Bengurion declared the Independent State of Israel.
May I also add that a total of 784 British men, women, soldiers and civilians were killed between the years 1945 and 1948 in an attempt to bring peace and stability to Palestine.
The current situation has nothing to do with the UK. That lies squarely with HAMAS death squads, the Einsatzgruppen in every intent, who brutally murdered 1400 men women, children, and babies or do you think they deserved it, being as they were Jewish?.