President Donald Trump signed a $600 billion agreement with Saudi Arabia on Tuesday that includes a major defense contract and substantial investments in artificial intelligence—as U.S. business executives made their own set of deals at a conference in the backdrop of Trump’s visit to Riyadh, the first stop on his four-day tour of the Middle East.

President Donald Trump landed in Saudi Arabia on Tuesday to begin an official visit to the Middle East, a major international trip during which he and his diplomats will continue pushing for peace between Russia and Ukraine and in the Gaza Strip.

RIYADH, Saudi Arabia (AP) — U.S. President Donald Trump opened his four-day Middle East trip on Tuesday by paying a visit to Saudi Arabia’s de facto ruler, Crown Prince Mohammed bin Salman, for talks on U.S. efforts to dismantle Iran’s nuclear program, end the war in Gaza, hold down oil prices and more.

The Trump family’s business ties to the Middle East have more than tripled since the president’s first term in office, a CNN a tally of the deals has found – including a slew of new projects announced since he reclaimed the White House.

President Donald Trump arrived in Saudi Arabia for the first stop of his multi-nation trip, as Syria’s new leadership signals interest in talks to restore relations between the two countries.

President Donald Trump arrived Tuesday morning in Riyadh, Saudi Arabia, the first stop of a four-day trip that will include visits to Qatar and the United Arab Emirates. The trip, the first major overseas tour since Trump returned to the White House,