Germany boycotted the anniversary meeting of the UN's Durban process on racism in New York, citing past anti-Semitic incidents at the conference in 2001 and later.
France and many other countries also stayed away.
US Ambassador Waltz called it a "shameful commemoration".
Israel mobilized against the event before.
UN Secretary-General Guterres used the meeting to call for stronger action against racism around the world.
Source: Zeit