
According to a statement by the U.S. State Department, the withdrawal was due to what Washington saw as the UN cultural agency's policy to "advance divisive social and cultural causes" over the Israel-Palestine conflicts.
"UNESCO's decision to admit the 'State of Palestine' as a member state is highly problematic, contrary to U.S. policy, and contributed to the proliferation of anti-Israel rhetoric within the organization," the statement said.
The U.S. exit will take effect at the end of December 2026.

The United States announced Tuesday its decision to pull out of the United Nations Educational, Scientific and Cultural Organization two years after rejoining.
Xinhua
Source : https://en.igihe.com/news/article/u-s-says-it-s-leaving-un-cultural-agency-unesco-again