The deal features a mix of public and private partnerships, a strong emphasis on emerging technologies, and a $142-billion arms deal.

The U.S. has agreed to sell Saudi Arabia an arms package worth nearly $142 billion, the White House announced Tuesday, as President Donald Trump kicked off his Middle East trip in Riyadh. Described by the Trump administration as "the largest defense cooperation agreement" in history,

Saudi Arabia is of key diplomatic importance to the Trump White House, especially amid the ongoing Israel-Hamas war.