"Tonight's withdrawal signifies both the end of the military component of the evacuation, but also the end of the nearly 20-year mission that began in Afghanistan shortly after September 11th 2001. It's a mission that brought Osama Bin Laden to a just end, along with many of his Al Qaeda co-conspirators, and it was not — it was not a cheap mission: the cost was 2,461 U.S. service members and civilians killed and more than 20,000 who were injured. Sadly that includes 13 US ervice members who were killed last week by an ISIS-K suicide bomber. We honor their sacrifice today, as we remember their heroic accomplishments. No words from me could possibly capture the full measure of sacrifices and accomplishments of those who served, nor the emotions they're feeling at this moment. But I will say that I'm proud that both my son and I have been a part of it."