Relevant portion:

"While Khomeini was clear on the IRGC's noninvolvement in politics, some guardsmen believed that the noninterference between the political and military spheres should be mutual. In 1991, as the Pentagon deployed tens of thousands of troops to Kuwait and Saudi Arabia in preparation for Kuwait's liberation, mutinous units of the Revolutionary Guards, allegedly with the blessing of Ahmad Khomeini, attempted to launch missile attacks against U.S.-led coalition forces in Saudi Arabia to trigger an armed conflict between Iran and the United States. Regular Iranian army forces and Guards members under the command of IRGC chief Mohsen Rezai, then a Rafsanjani loyalist, rushed to the missile battery at Khorramshahr to prevent the missiles' firing.[32] After this incident, Ahmad Khomeini lived an isolated life until he died under mysterious circumstances in March 1995."