After Iraq was driven out of Kuwait by US-led coalition forces during Operation Desert Storm, Iraq and the UN Security Council signed a ceasefire agreement on March 3, 1991. Subsequently, throughout the 1990s, the U.N. Security Council passed numerous resolutions calling for Iraq to disarm its weapons of mass destruction unconditionally and immediately. Because no peace treaty was signed after the Gulf War, the war still remained in effect, including an alleged assassination attempt of former US President George H. W. Bush by Iraqi agents while on a visit to Kuwait; Iraq being bombed in June 1993 as a response, Iraqi forces firing on coalition aircraft patrolling the Iraqi no-fly zones, US President Bill Clinton's bombing of Baghdad in 1998 during Operation Desert Fox, and an earlier 1996 bombing of Iraq by the US during Operation Desert Strike. The war remained in effect until 2003, when US and UK forces invaded Iraq and toppled Saddam Hussein's regime from power.