2017 Dubai Air Show gets underway

Russian Knights, an aerobatic demonstration team of the Russian Air Force, perform during the opening day of the Dubai Air Show, United Arab Emirates, Sunday, Nov. 12, 2017. The biennial Dubai Air Show opened Sunday with hometown long-haul carrier Emirates making a $15.1 billion buy of American-made Boeing 787-10 Dreamliners, as the world's biggest defense companies promoted their weapons amid heightened tensions between Saudi Arabia and Iran. [Photo: AP]