After the army of its ally collapsed, the great power was required to improvise an evacuation on very short notice. Despite some losses, it was a success. Over 100,000 people were evacuated in spite of the efforts of surrounding hostile forces.
Is it Dunkirk or Kabul? The first is viewed as a success and the second a failure—largely because the Taliban aren’t the Wehrmacht—but they have more in common than you might think at first glance.