Ba'athist Iraq Kuwait did nevertheless). Saudi Arabia, frightened by Saddam's military strength, then persuaded Kuwait to lower its oil output. However, when Kuwait lowered its oil output Venezuela increased its output. Saddam then ordered the invasion of Kuwait to solve the country's economic problems, with the professed goal of uniting Iraq; Kuwait was considered by many Iraqis as part of Iraq. On 18 July 1990 Saddam demanded that Kuwait repay Iraq for the oil it had (according to Saddam) stolen, and nullified Iraq's debt to Kuwait. The Kuwaiti leadership failed to respond, and on 2 August 1990 the Iraqi military began the
Liberation of Kuwait campaign the U.S. Marines stopped at the outskirts of Kuwait City, allowing their Coalition allies to take and occupy Kuwait City, effectively ending combat operations in the Kuwaiti theater of the war. After four days of fighting, all Iraqi troops were expelled from Kuwait, ending a nearly seven-month occupation of Kuwait by Iraq. A little over 1,100 casualties were suffered by the Coalition. Estimates of Iraqi casualties range from 30,000 to 150,000. Iraq lost thousands of vehicles, while the advancing Coalition lost relatively few; Iraq's obsolete Soviet T-72 tanks proved no match for the American M1 Abrams and British Challenger tanks.