Polish authorities arrest a suspected Israeli agent in connection with the murder of a Hamas operative in Dubai in January.
A summit between Israel and the Visegrád Group (the Czech Republic, Hungary, Poland and Slovakia) is cancelled following Poland's reaction and withdrawal as a result of Israeli officials' statements on the Holocaust alleging Polish involvement. Prime Minister Benjamin Netanyahu says Israel will hold bilateral talks with the three prime ministers attending.
Poland and Israel join Bulgaria, the Czech Republic, Croatia, Hungary, Australia and Austria in announcing that, despite their agreement in July, they will not sign the United Nations Global Compact for Migration in Marrakech on 10–11 December 2018.
A letter from 59 US Senators is sent to Polish Prime Minister Mateusz Morawiecki criticising proposed legislation on reparations to Holocaust victims. The Senators say the bill will discriminate against victims and descendants who had emigrated.
Israel acknowledges that Uri Brodsky, a citizen arrested in Poland and charged with involvement in the assassination of Mahmoud al-Mabhouh, is a "businessman" but Prime Minister Benjamin Netanyahu refuses to comment on suggestions the country is trying to stop his extradition to Germany amid calls by ministers for him to be extradited to Israel.