The last US military planes have left Afghanistan, marking the end of the United States' longest war

The last US military planes have left Afghanistan, Gen. Frank McKenzie, the commander of US Central Command, announced Monday at the Pentagon. The US departure marks the end of a fraught, chaotic and bloody exit from the United States' longest war.

"I'm here to announce the completion of our withdrawal from Afghanistan, and the end of the military mission to evacuate American citizens, third country nationals, and vulnerable Afghans," McKenzie told reporters. "The last C-17 lifted off from Hamid Karzai International Airport on August 30th, this afternoon, at 3:29 p.m. East Coast time, and the last manned aircraft is now clearing the airspace above Afghanistan."

"There's a lot of heartbreak associated with this departure," McKenzie said. "We did not get everybody out that we wanted to get out."

President Joe Biden weighed in with a statement later on Monday and thanked the final US forces serving in Afghanistan for executing the "dangerous retrograde from Afghanistan as scheduled," with no further loss of American lives.

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"The past 17 days have seen our troops execute the largest airlift in US history, evacuating over 120,000 US citizens, citizens of our allies, and Afghan allies of the United States. They have done it with unmatched courage, professionalism, and resolve," the President said in the statement. He said he will make an address about Afghanistan to the nation on Tuesday.

"Now, our 20-year military presence in Afghanistan has ended," Biden said.

As of Monday, more than 122,000 people in total had been airlifted from Hamid Karzai International Airport since July, Pentagon spokesman John Kirby told reporters Monday morning.

Since August 14, the Pentagon deployed US Special Operations Forces to bring in 1,064 US citizens and 2,017 at risk Afghans or Special Immigrant Visa applicants, McKenzie said. "We have evacuated more than 6,000 US civilians, which we believe represents the vast majority of those who wanted to leave at this time," he said.