Terrorism refers to political violence that targets civilians deliberately and indiscriminately. International terrorism involves the citizens or territory of more than one country. Terrorist groups seek to change a political context or condition that they do not like by force or threat of force. Civilian targets are usually chosen to terrorise the public and to use the unhappiness of the public as a weapon against national governments or other parties in conflict.

Which of the following statement describes the 9/11 attacks in the United States?

On 11 September 2001, four USA commercial planes hijacked and attacked by Al-Qaeda in USA and flew them up on important buildings in USA.

On 11 September 2001, nineteen hijackers hailing from a number of Arab countries took control of four American commercial aircraft shortly after takeoff and flew them into important buildings in the US.