September 11, 2021, marks the 20th anniversary of 9/11, the largest terrorist attack in history. On that Tuesday morning

a terrorist group named Al-Qaeda hijacked four American commercial flights destined for the West Coast and intentionally crashed them. 2 of them infamously crashed into the twin towers.

These attacks were organised by the islamist terrorist organisation Al Qaeda, and their leader Osama Bin Laden.

Back in 2001 Al Qaeda was a force to be reckoned with. Today the core of Al Qaeda is defeated, but the organisation definitely still exists. Today their leader is Ayman Al-Zawahari, who has had a fair share of terror plans in his time as leader