Three days after the terrorist attacks of September 11, 2001, Congress passed a joint resolution called an Authorization for Use of Military Force (AUMF). You might remember it. In layman’s terms, it was a carte blanche for the Bush administration to go to war wherever it wanted, whenever it wanted, however it wanted, under the guise of fighting anyone who “planned, authorized, committed, or aided” the September 11th attackers, or “harbored” any terrorists or terror organizations connected to the attacks.
That document, more than any other, launched the Global War on Terror or GWOT. President Obama long ago ditched the name and acronym, but he kept the global war.