With the Castro era coming to a close in Cuba, it may be time for President Donald J. Trump to take back some of his predecessor’s concessions to Havana.

Votes against Israel at the United Nations over the decades seem to indicate it is a pariah nation, but the country’s expanding bilateral ties tell a different story.

China and Israel have sharply ramped up trade, investment, and cultural ties in recent years, but obstacles to closer relations may yet emerge.