Throwback to 9/11 Tragedy: Putin Stepped Up as First World Leader to Offer Condolences to US

The 9/11 attacks were a series of coordinated terrorist strikes carried out by the extremist terror group al-Qaeda* on September 11, 2001. On that day, four commercial airliners were hijacked and deliberately crashed into the World Trade Center in New York City, the Pentagon in Washington, D.C., and a field in Pennsylvania.