Crown Prince Mohammed bin Salman welcomed President Donald Trump to Saudi Arabia on Tuesday as the U.S. leader began a four-day Middle East tour. Trump, as he did in his first term, is paying an early visit to the kingdom after the crown prince promised to pump hundreds of billions of dollars in new investments in the United States.

The White House has called Trump’s visit a “historic return to the Middle East” but Israel is once again not on the itinerary.