BERLIN (AP) — The European Union's migration commissioner is calling on member countries that have turned against a U.N.-backed migration pact to reconsider their opposition.

A conference in Marrakech, Morocco on Dec. 10-11 is due to approve the Global Compact for Safe, Orderly and Regular Migration, which was finalized in July with only the U.S. staying out. But the non-binding accord is drawing strong opposition from nationalists in Europe and elsewhere, and EU countries including Hungary, Austria and Poland have since pulled out or expressed reservations.

EU Migration Commissioner Dimitris Avramopoulos was quoted Monday as telling German daily Die Welt that he doesn't understand opposition to the pact, which he said forces nothing on anyone. He urged countries rejecting the accord to rethink their opposition in the coming days and join up.