Qatar awarded a contract for up to 210 new wide-body civilian airliners to Boeing on Wednesday, a blockbuster deal for the beleaguered aerospace company that was inked in a Doha ceremony where President Donald Trump hailed it as evidence of his abilities to promote U.

The Qatar-Boeing deal is the latest in a series of high-profile aviation agreements signed during Trump’s four-day Middle East visit. Just a day earlier, Saudi Arabia’s sovereign wealth fund inked a $4.8 billion agreement with Boeing, and U.S. Commerce Secretary Howard Lutnick announced a $10 billion order from a British airline.

A year after Boeing Co. slogged through a deep executive shakeup and prolonged existential crisis, the US planemaker just landed its biggest-ever aircraft order, propelled by a powerful endorsement from President Donald Trump.