What were the results of 9/11 on the world?The attacks on the United States on 11 September 2001 led to big changes. President George W Bush called this the "war on terror".http://www.bbc.co.uk/news/world-14844727#

1. More Terrorism?Many groups either directly linked to al-Qaeda or inspired by its message have committed acts of violence around the world.

The United States eventually tracked down its number one target, Osama Bin Laden, but there are still many attacks.

2. Wars?

Following the 9/11 attacks, the United States invaded Afghanistan to stop al-Qaeda using the country as its base. The mission was launched under the title of Operation Enduring Freedom (OEF).

More than 50 countries have sent troops or reconstruction teams to Afghanistan. 3300 soldiers have died, and tens of thousands of Afghans.

In March 2003, Iraq was invaded by a US-led coalition which planned to disarm the country and replace its government. A large number of countries sent peacekeepers and reconstruction teams in an attempt to control the violence that followed the

invasion and Saddam Hussein's removal from power. The final US combat troops left Iraq in 2010. Over 200,000 Iraqis died.

3. Prisons?

The Guantanamo Bay prison was opened in January 2002, after the invasion of Afghanistan. Prisoners in Guantanamo were held outside the US justice system and there have been many allegations of harsh treatment.

More than 780 people have been held at the facility. But US military analysts considered only 220 of those detained at Guantanamo to be dangerous extremists.

Extraordinary rendition is the term used to describe sending prisoners from one state to another, outside normal legal processes. The US government has done this since 9/11.

Task: How many countries affected? How many killed? How much cost?