Britain's Prime Minister, Boris Johnson, and leader of Her Majesty's Opposition, Kier Starmer, have both released Rosh Hashana messages.
The letter came after UK Security Minister James Brokenshire said that the government did not collect data on the number of people in the UK investigated or charged with supporting Hezbollah.
Johnson and Netanyahu agreed to strengthen relations between the two countries in all fields.
"There is another way," urged Johnson, pushing for the renewal of peace talks between Palestinians and Israelis.
Last week, a UK diplomatic source said formal sanctions on Israel in response to annexation are unlikely, and in fact the UK seeks to increase scientific cooperation with Israel.
"They had a strategy to deal with a ‘death of Stalin’-type scenario," Johnson said.