The collapse of the American project in Afghanistan may fade fast from the news here, but don’t be fooled. It couldn’t be more significant in ways few in this country can even begin to grasp.

“Remember, this is not Saigon,” Secretary of State Antony Blinken told a television audience on August 15th, the day the Taliban swept into the Afghan capital, pausing to pose for photos in the grandly gilded presidential palace. He was dutifully echoing his boss, President Joe Biden, who had earlier rejected any comparison with the fall of the South Vietnamese capital, Saigon, in 1975, insisting that “there’s going to be no circumstance where you see people being lifted off the roof of an embassy of the United States from Afghanistan. It is not at all comparable.”

Both were right, but not in the ways they intended. Indeed, the collapse of Kabul was not comparable. It was worse, incomparably so. And its implications for the future of U.S. global power are far more serious than the loss of Saigon.

On the surface, similarities abound. In both South Vietnam and Afghanistan, Washington spent 20 years and countless billions of dollars building up massive, conventional armies, convinced that they could hold off the enemy for a decent interval after the U.S. departure. But presidents Nguyen Van Thieu of South Vietnam and Ashraf Ghani of Afghanistan both proved to be incompetent leaders who never had a chance of retaining power without continued fulsome American backing.

Amid a massive North Vietnamese offensive in the spring of 1975, President Thieu panicked and ordered his army to abandon the northern half of the country, a disastrous decision that precipitated Saigon’s fall just six weeks later. As the Taliban swept across the countryside this summer, President Ghani retreated into a fog of denial, insisting his troops defend every remote, rural district, allowing the Taliban to springboard from seizing provincial capitals to capturing Kabul in just 10 days.

With the enemy at the gates, President Thieu filled his suitcases with clinking gold bars for his flight into exile, while President Ghani (according to Russian reports) snuck off to the airport in a cavalcade of cars loaded with cash. As enemy forces entered Saigon and Kabul, helicopters ferried American officials from the U.S. embassy to safety, even as surrounding city streets swarmed with panicked local citizens desperate to board departing flights.

Critical Differences

So much for similarities. As it happens, the differences were deep and portentous. By every measure, the U.S. capacity for building and supporting allied armies has declined markedly in the 45 years between Saigon and Kabul. After President Thieu ordered that disastrous northern retreat, replete with dismal scenes of soldiers clubbing civilians to board evacuation flights bound for Saigon, South Vietnam’s generals ignored their incompetent commander-in-chief and actually began to fight.

On the road to Saigon at Xuan Loc, an ordinary South Vietnamese unit, the 18th Division, fought battle-hardened North Vietnamese regulars backed by tanks, trucks, and artillery to a standstill for two full weeks. Not only did those South Vietnamese soldiers take heavy casualties, with more than a third of their men killed or wounded, but they held their positions through those long days of “meat-grinder” combat until the enemy had to circle around them to reach the capital.

In those desperate hours as Saigon was falling, General Nguyen Khoa Nam, head of the only intact South Vietnamese command, faced an impossible choice between making a last stand in the Mekong Delta and capitulating to communist emissaries who promised him a peaceful surrender. “If I am unable to carry out my job of protecting the nation,” the general told a subordinate, “then I must die, along with my nation.” That night, seated at his desk, the general shot himself in the head. In South Vietnam’s last hours as a state, four of his fellow generals also committed suicide. At least 40 more lower-ranking officers and soldiers also chose death over dishonor.

On the road to Kabul, by contrast, there were no heroic last stands by regular Afghan army units, no protracted combat, no heavy casualties, and certainly no command suicides. In the nine days between the fall of Afghanistan’s first provincial capital on August 6th and the capture of Kabul on August 15th, all of the well-equipped, well-trained Afghan soldiers simply faded away before Taliban guerrillas equipped mainly with rifles and tennis sneakers.