The D Brief: Defense-exports deal; F-47 specs; China’s Gulf inroads; Air Force One dangers; And a bit more.

At $142 billion, the White House claims it has “signed the largest defense sales agreement in history” following President Trump’s arrival to the Middle East this week for talks with regional officials, including Saudi crown prince Mohammed bin Salman on Tuesday. The equipment allegedly falls under five categories: “(1) air force advancement and space capabilities, (2) air and missile defense, (3) maritime and coastal security, (4) border security and land forces mod