The "War on Terror" refers to the global campaign launched by the United States and its allies after the September 11, 2001, terrorist attacks. The primary goal is to eliminate terrorist groups, particularly Al-Qaeda, and prevent future attacks. This campaign has involved military operations, intelligence sharing, and international cooperation. The War on Terror has led to significant military engagements, notably in Afghanistan and Iraq. It has also sparked debates about national security, civil liberties, and the effectiveness of military intervention in combating terrorism. The conflict continues to evolve as new threats emerge globally.