U.S. President Donald Trump touched down in Saudi Arabia aboard Air Force One on Tuesday on the first stop of four day visit to the region, the first major overseas trip of his second term, with a focus on securing investment in the U.

As President Donald Trump tours the Middle East, the United States and Saudi Arabia signed a historic $142 billion arms deal that according to the White House was the largest defense sales agreement in history.

Mr. Trump has few meetings directly about pressing geopolitical challenges. Instead, he’s in the Persian Gulf to make deals.