Trump’s Mideast Breakthrough

President Trump’s Mideast strategy has been to strongly back Israel, support the Gulf monarchies, and press back hard against Iranian imperialism. His liberal critics insisted this would lead to catastrophe that never came, and on Thursday it delivered a diplomatic achievement: The United Arab Emirates and Israel agreed to normalize relations, making the UAE the first Arab League country to recognize the Jewish state in 20 years.

The agreement is worth celebrating on its own terms but it also holds lessons for U.S. foreign policy. On regional strategy, this shows...