Israel’s Defence Minister Ehud Barak will meet Prime Minister Gordon Brown and Foreign Secretary David Miliband at the Labour Party conference in Brighton to discuss the growing nuclear threat from Iran.
But Mr Barak's visit may be hampered by a Palestinian group who have sought to obtain an international arrest warrant for alleged war crimes committed by Mr Barak.
The group, represented by solicitors Irvine Thanvi Nataz, submitted the request to Westminster Magistrates, seeking the arrest under the International Criminal Court Act 2001 and the Criminal Justice Act.
Israeli legal advisors recommended that Mr Barak leave the UK and fly to France, but he has chosen to remain to meet British leaders.
Mr Barak and Mr Brown are expected to hold talks today, and Mr Barak will meet Mr Miliband tomorrow.
Mr Barak will also speak at the Labour Friends of Israel at their annual reception, the first senior Israeli minister to speak since the new government was elected in February.