Thirty-one nations will boycott a UN meeting marking the 20th anniversary of the Durban World Conference on Racism — also known as Durban IV — on Wednesday, over concerns that it will veer into open antisemitism as it has in the past.

The first Durban conference — held from August 31 to September 8, 2001, just days before the terror attacks of September 11 — was marked by deep divisions on the issues of antisemitism, colonialism and slavery. The US and Israel walked out of the conference in protest at the tone of the meeting, including over plans to include condemnations of Zionism in the final text.