Iranian General Qassem Soleimani arrived at the Damascus airport in a vehicle with dark-tinted glass. Four soldiers from Iran’s Revolutionary Guards rode with him. They parked near a staircase leading to a Cham Wings Airbus A320, destined for Baghdad. Neither Soleimani nor the soldiers were registered on the passenger manifesto, according to a Cham Wings airline employee who described the scene of their departure from the Syrian capital to Reuters. Soleimani avoided using his private plane because of rising concerns about his own security, said an Iraqi security source with knowledge of Soleimani’s security arrangements. The passenger flight would be...