The Iran–Iraq War clearly underlined the growing tensions in the region, and developments such as Iranian mining operations in the Persian Gulf led to CENTCOM's first combat operations. On 17 May 1987, the USS Stark (FFG-31), conducting operations in the Persian Gulf during the Iran-Iraq War, was struck by Exocet missiles fired by an Iraqi aircraft, resulting in 37 casualties. Soon afterward, as part of what became known as the "Tanker War", the Federal government of the United States reflagged and renamed 11 Kuwaiti oil tankers.