What force is so strong as to overcome objections by the Pentagon and the State Department?

Nearly Every Former U.S. Ambassador to Israel Disagrees With Trump’s Jerusalem Decision

All but two of 11 former United States ambassadors to Israel contacted by The New York Times after President Trump’s decision to recognize Jerusalem as Israel’s capital thought the plan was wrongheaded, dangerous or deeply flawed.

The 11 ex-envoys all closely followed Mr. Trump’s announcement on Wednesday, in which he also set in motion a plan to move the American Embassy to Jerusalem from Tel Aviv. Even those who agreed that Mr. Trump was recognizing the reality on the ground disagreed with his approach — making a major diplomatic concession without any evident gain in return.

Read more at https://www.nytimes.com/2017/12/07/world/middleeast/israel-jerusalem-ambassadors-state-trump.html?&moduleDetail=section-news-1&action=click&contentCollection=Middle%20East&region=Footer&module=MoreInSection&version=WhatsNext&contentID=WhatsNext&pgtype=article