Because terrorist and terror organizations are located in many locations around the planet.
As of 2014, the War on Terror is an ongoing war. A report in 2011 says that over one million US soldiers have served in some way with the war.
Pakistan is Fighting a Major War on terror on its own soil since 2004, According to Pakistan and the UN it has suffered the most damage on its economy and national Stability as Global War on terror Ally
Enable partner nations to counter terrorism
the 9/11 attack
War causes terror, so how can war be a solution to terror?
WWI, WWII, Korea, Vietnam. Persian Gulf War and the Global War on Terror
Both the War on Drugs and the War on Terror have created controversies having to do with privacy. For example, the War on Drugs loosened what is considered unreasonable search and seizure, while the policies of the War on Terror have resulted in many well known cases of the US government spying on its own citizens.
The Global War on Terrorism is considered to be WW3.
National Defense Medal, the Global War on Terror Medal, and the Army Service Medal.
D. The international military response to the September 11, 2001 attacks on America by Al-Qaeda
the war on terror is between the United States and Iraq
The term "war on terror" is a commonly used name for the global efforts to combat terrorism, but some critics argue that it is too broad, vague, and can be misinterpreted as a war against a tactic rather than specific groups. It is a debated topic in terms of accuracy and effectiveness as a descriptor.