BEN-GURION INTERNATIONAL AIRPORT, Israel—Senior White House adviser Jared Kushner led a delegation from Israel to Morocco on Tuesday on the first known direct flight since the two countries agreed to establish full diplomatic ties earlier this month as part of a series of U.S.-brokered normalization accords with Arab countries. Kushner, President Donald Trump’s son-in-law, has overseen the diplomatic push that saw the United Arab Emirates, Bahrain, Sudan, and Morocco normalize relations with Israel in historic agreements. As part of the deal, Morocco, which is home to a small but centuries-old Jewish community and has long welcomed Israeli tourists, secured U.S. recognition of its 1975 annexation of the disputed region of Western Sahara, which is not recognized by the United Nations. The U.S. decision to recognize Moroccan sovereignty over Western Sahara has drawn criticism from the UN as well as American allies in Africa and beyond. African observers have said it could …