West Bank ? Palestinian President Mahmoud Abbas delivered a defiant message to a U.S. envoy on Saturday, saying that the world would have to learn to live with a new coalition between his Fatah movement and the Islamic militant Hamas.

The alliance has raised concerns in the United States, and American officials have told Abbas they would shun any Palestinian government that does not explicitly recognize Israel, according to Abbas’ aides.

The platform of a Hamas-Fatah government agreed at a meeting in Mecca last week only contains a vague promise to “respect” previous peace deals with Israel, at best implying recognition.

Abbas accepted the power-sharing deal with Hamas in hopes that it would end months of deadly factional fighting, even though the new government’s program is unlikely to satisfy the international community or end a crippling aid boycott.