Israeli gunfire reportedly killed at least three dozen Palestinians and wounded many more along the Gaza Strip border fence on Monday as thousands of protesters gathered ahead of the opening of the U.S. Embassy in Jerusalem. Demonstrations against the embassy's move from Tel Aviv to Jerusalem, which both Israelis and Palestinians claim as their capital, were fueled by calls from Gaza mosques urging people to participate in a "Great March of Return." The May 15 event, which honors the 700,000 Palestinians who left or were expelled from their homes due to Israel's 1948 Declaration of Independence, culminates six weeks of protests in which Israeli troops have killed dozens of Palestinians. President Trump's daughter Ivanka Trump and son-in-law Jared Kushner, both White House advisers, are on hand for the embassy's inauguration on Monday.