President Trump’s recent meeting with Crown Prince Salman covered the topic of arms sales from the U.S. to Saudi Arabia, though no new deals were announced. Exports of weapons systems and military aircraft are a key part of both the trade and defense strategies of the administration. A total of $69 billion of export sales have been approved by the U.S. State Department since January 2017, with $18 billion accounted for by Saudi Arabia. It is the number one importer of U.S. weapons systems with $1.9 billion shipped in the 12 months to January 31, which was 2.2x the level of a yea...