The War on Terror (also known as the Global War on Terror or the War on Terrorism) is a term commonly applied to an international military campaign led by the United States and the United Kingdom with the support of other NATO as well as non-NATO countries. Originally, the campaign was waged against al-Qaeda and other militant organizations with the purpose of eliminating them.
The phrase 'War on Terror' was first used by US President George W. Bush and other high-ranking US officials to denote a global military, political, legal and ideological struggle against organizations designated as terrorist and regimes that were accused of having a connection to them or providing them with support or were perceived, or presented as posing a threat to the US and its allies in general