of nations, styled the Coalition, on the Arabian peninsula. Initially, Saddam Hussein attempted to deter Coalition military action by threatening Kuwait's and Iraq's petroleum production and export. In December 1990, Iraq experimented with the use of explosives to destroy wellheads in the area of the Ahmadi loading complex, developing their capability to destroy Kuwait's petroleum infrastructure on a large scale. On 16 January, Iraqi artillery destroyed an oil storage tank in Khafji, Saudi Arabia, and on 19 January the pumps at the Ahmadi loading complex were opened, pouring crude oil into the Persian Gulf. The oil flowed into the sea at a rate of 200,000 barrels a day, becoming one of the worst ecological disasters to that date. Despite these Iraqi threats, the Coalition launched a 38-day aerial campaign on 17 January 1991. Flying an estimated 2,000 sorties a day, Coalition aircraft rapidly crippled the Iraqi air defense systems and effectively destroyed the Iraqi Air Force, whose daily sortie rate plummeted from a prewar level of an estimated 200 per day to almost none by 17 January. On the third day of the campaign, many Iraqi pilots fled across the Iranian border in their aircraft rather than be destroyed. The air campaign also targeted command-and-control sites, bridges, railroads, and petroleum storage facilities. Saddam Hussein, who is believed to have said, "The air force has never decided a war," nevertheless worried that the air campaign would erode Iraq's national morale. The Iraqi leader also believed that the United States would not be willing to lose many troops in action, and therefore sought to draw Coalition ground troops into a decisive battle. In an attempt to provoke a ground battle, he directed Iraqi forces to launch Scud missiles against Israel, while continuing to threaten the destruction of oilfields in Kuwait. These efforts were unsuccessful in provoking a large ground battle, so Saddam Hussein decided to launch a limited offensive into Saudi Arabia with the aim of inflicting heavy losses on the Coalition armies. As the air campaign continued, the Coalition's expectations of an Iraqi offensive decreased. As a result, the United States redeployed the XVIII Airborne Corps and the VII Corps 480 kilometers (300 mi) to the west. The Coalition's leadership believed that should an Iraqi force go on the offensive, it would be launched from the al-Wafra oil fields, in Southern Kuwait. Order of battle The Iraqi Army had between 350,000