When President Bush declared a “war on terror” after 9/11, how did this statement change US foreign policy?

The “war on terror” broadened the target of U.S. policy beyond terrorist organizations to include states that sheltered or supported them. Bush’s administration warned that countries harboring terrorists could be treated as responsible alongside the groups themselves. This is captured by “the United States would no longer distinguish between terrorist groups and the countries that harbored them.”

AI-written and checked against the verified answer.