Late on 12 May, several vehicles manned by heavily armed assault teams arrived at three Riyadh compounds: The Dorrat Al Jadawel, a compound owned by the London-based MBI International and Partners subsidiary Jadawel International, the Al Hamra Oasis Village, and the Vinnell Corporation Compound, occupied by a Virginia-based defense contractor that was training the Saudi National Guard.[1] All contained large numbers of Americans, Westerners, and non-Saudi Arabs.