BSC's first assignment was to provide 20 men with top secret clearance to protect the CIA headquarters and another base that was responsible for hunting Osama bin Laden. Blackwater was one of several private security firms employed following the U.S. invasion of Afghanistan. BSC was originally formed as a Delaware LLC and was one of over 60 private security firms employed during the Iraq War to guard officials and installations, train Iraq's new army and police, and provide other support for coalition forces. Smith left Blackwater to start his own firm, SCG International Risk, in 2003. Blackwater was also hired during the aftermath of Hurricane Katrina by the United States Department of Homeland Security to protect government facilities, as well as by private clients, including communications, petrochemical, and insurance companies. Overall, the company received over US$1 billion in U.S. government contracts. The company consisted of nine divisions and a subsidiary, Blackwater Vehicles.