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Could Donald Trump end the Afghan war someday? I don’t know if such a possibility has been on your mind, but it’s certainly been on the mind of this retired US Army major who fought in that land so long ago. And here’s the context in which I’ve been thinking about that very possibility.

Back in the previous century, it used to be said that “only Nixon could go to China.” In other words, only a longtime cold warrior and red baiter like President Richard Nixon had the necessary tough-guy credentials to break with a tradition more than two decades old in February 1972. It was then that he and national security adviser Henry Kissinger traveled to Beijing and met with Communist leader Mao Zedong. In that way, they began a process of reestablishing relations with China (now again being impaired by Donald Trump) broken when the Communists won a civil war against the American-backed nationalists led by Chiang Kai-shek and came to power in 1949.

By the same token, perhaps no one but Nixon could have eventually—after hundreds of thousands more Vietnamese, Laotians, Cambodians, and Americans died—extracted the United States from what was then (but is no longer) America’s longest war, the one in Vietnam. After all, in 1973, it was hard to imagine just about any Democrat agreeing to the sort of unseemly concessions at the negotiating table in Paris that resulted in an actual peace accord with a crew of Communists. But Nixon did so.

After those “peace” talks and the withdrawal of US troops from that land, the corrupt, battered US-backed South Vietnamese government barely held on for another two gruesome years before a massive Communist offensive finally took Saigon, the capital of the American-backed half of that country in April 1975. Images of US military helicopters hastily evacuating American diplomats and others from Saigon would prove embarrassing indeed. Yet, in the end, little could have altered the ultimate outcome of that war.

Nixon, a cynic’s cynic, evidently sensed just that. Yes, he would prolong the war to the tune of more than 20,000 additional US troop deaths and seek to create a politically palatable pause between the withdrawal of American troops and the unavoidable Communist victory to come (at the cost of god knows how many more dead Vietnamese). It was what he called “breathing space.” In the end, in other words, in the bloodiest way imaginable, he finally accepted both his presidential, and Washington’s, limitations in what was, after all, a Vietnamese civil war.

Fellow TomDispatch regular Andrew Bacevich has referred to such realities as “the limits of power.” As a longtime military man who once carried water for the American empire in both Afghanistan and Iraq, let me assure you that, almost two decades into the 21st century, those limits still couldn’t be more real.

Recently, I got to thinking about Vietnam and Bacevich—himself a veteran of that war—while following the strange pace of the Trump administration’s peace talks with the Taliban. It struck me that the president, his negotiators, and his loyally “deplorable” backers might (gulp!) just be America’s best hope for striking a deal, 18 years late, to conclude the US military’s role in Afghanistan. If so, he would end the war that replaced Vietnam as this country’s longest—and that’s without even counting the first Afghan War Washington fought there against the Red Army of the now-defunct Soviet Union from 1979 to 1989.

An Unwinnable War

For someone like me who long ago turned his back on America’s never-ending wars on terror, it’s discomfiting to imagine the process that might finally lead to a US military withdrawal from Afghanistan, especially one negotiated by The Donald and his strange team of hawks. Of one thing, rest assured: Bad things will happen afterward. Afghans whom Americans are sympathetic to, especially women, will suffer under the heel of the kind of extreme Islamism that will be in command in significant parts of the country. And getting there could be no less grim. After all, President Trump, that self-proclaimed “deal-maker,” has so far shown himself to be anything but impressive in striking deals. Nevertheless, he has, at least, regularly criticized the ill-advised Afghan War for years and his instincts, when it comes to that conflict, though unsophisticated and ill-informed, seem sound.

In a sense, the situation isn’t complicated: The US war in Afghanistan cannot be won. The Kabul-based government’s gross domestic product can’t even support its own military budget, leaving it endlessly reliant on aid from Washington and its allies. Its security forces have been taking what, last December, the American general about to become the head of US Central Command termed “unsustainable” casualties—45,000 battle deaths since 2014. Those security forces simply can’t recruit enough new members to replace such massive losses.

Today, the US-backed regime controls less of Afghanistan than at any point in the nearly two-decade-long war, despite all the American bombs dropped and troops deployed these past 18 years. Rather than grapple with that inconvenient fact, the US military simply stopped counting how much of the country the Taliban now contests or controls. For these and a plethora of other reasons, that military and its Afghan proxies won’t be able to change the ultimate outcome of the Taliban’s war in Afghanistan. Forgive me, then, for placing some hope in President Trump and his negotiators.

The disconcerting truth is that the brutal, venal, medieval Taliban movement is popular in the ethnic-Pashtun-dominated south and the mountainous east of Afghanistan. In 2011-2012, as a lowly company commander in a sub-district of Kandahar, the province that birthed the Taliban, I saw firsthand just how much sympathy villagers seemed to have for that Islamist cause. Sure, many—so, at least, they said—were opposed to that movement’s violent campaign to control the province and the country, but culturally and religiously in some fashion many of them seemed to agree with the group’s basic agenda and worldview.

Most of the Taliban foot soldiers I faced were little more than impoverished farm boys with guns drawn to the movement as much by patriotic opposition to the American military occupation of their country as by any desire for the application of sharia law. In addition, many in the region were making at least modest sums off Afghanistan’s record-breaking opium trade, something the United States was never truly capable of controlling or suppressing. The bottom line: The American war in Afghanistan was essentially over then. It’s over now, a defeat that neither politicians in Washington nor Pentagon officials have been able to accept to date.

A Brief Litany of Messy Wars and Their Endings Since 1945

The certainty of imperial failure in anticolonial and counterinsurgency conflicts has defined the era of war making since at least 1945. So it shall be in Afghanistan. Nevertheless, it’s worth considering some of those oft-forgotten conflicts.

In the favored American version of war, endings involve unconditional surrender by a defeated enemy, whether Robert E. Lee at Appomattox Courthouse in 1865 or imperial Japanese officials on the deck of the USS Missouri in 1945. But such moments, historically speaking, couldn’t be more rare in “the American century.” After World War II, as the last colonial wars of the European powers ended in defeat or the withdrawal of imperial forces, the US military went to war globally with Third World “Communism”—and victory became a thoroughly outmoded word. In the Korean War (1950-1953), which never officially ended, the United States finally settled for a status quo truce with its North Korean and Chinese opponents. Tens of thousands of American troops and millions of Koreans died in what essentially amounted to a negotiated draw. Vietnam, as noted, ended in the negotiated version of an outright defeat.

Meanwhile, the French, already booted out of Vietnam in the First Indochina War (1954-1962), tried to torture and kill their way to victory in colonial Algeria before accepting defeat there, too. (A coup attempt by disgruntled right-wing military officers during that counterinsurgency almost cost France its democracy.) Nor could a declining Great Britain kill its way out of the last of its colonial wars, the “Troubles” in Northern Ireland (1969-1998). That 30-year war with the quasi-socialist, nationalist Irish Republican Army (IRA) only ended when London demonstrated a willingness to negotiate with that group and draw it into electoral politics. Not only was there no military victory to be had, but Britons had to swallow the embarrassing spectacle of former IRA bombers being released from prison and onetime IRA commanders entering parliament at Westminster.

In smaller conflicts and interventions, the American military withdrew from Lebanon in 1983 after some 220 Marines (and 20 other service personnel) were killed in a suicide bombing and the until-then hawkish President Ronald Reagan realized he’d stepped into an unwinnable morass. In 1994, President Bill Clinton did the same in Somalia after 18 US troops were killed in a chaotic shootout the previous year with a warlord militia in a local civil war. (Twenty-five years later, however, US drones and special operators are still battling it out in that chronically war-ravaged society.)

One lesson to draw from such an abbreviated version of American and allied morasses and military defeats at the hands of nationalist militants, left and right, is that suppressing people’s movements has historically proven difficult indeed. Most of the insurgencies of the long Cold War era were led by vaguely Marxist or, at least, leftist groups. In this century, however, similar insurgencies are led by right-wing Islamist groups. Either way the results have generally been the same. The insurgents, not the governments the United States imposed and/or backed, are almost invariably seen by local populations as the more popular, legitimate fighting forces.

Marxism (and its Soviet communist variant) ran its course in local societies as the Cold War wound to its conclusion, but such movements were never truly defeated by the US military and its brutal right-wing proxies, even in the Americas (as in Nicaragua in the 1980s). Islamist theocracy is undoubtedly abhorrent, but it, too, must run its course and (hopefully) sooner or later be defeated by forces within the societies where it’s now conducting its terror wars. Just as in Vietnam, the US military occupation of Afghanistan in this century has only served as an accelerant for what might be thought of as political and military arson.

A Messy End

Predictions are tricky when it comes to war, but here’s a safe enough bet: in the wake of any Trump administration “peace” deal with the Taliban, like the South Vietnamese government of the Nixon era, a corrupt, scarcely legitimate US-backed Afghan government and its badly battered security forces will, sooner or later, find themselves back at war. And they will be fighting an ever more confident Taliban. The Kabul-based regime could perhaps hold onto the biggest cities (except possibly Kandahar) and significant parts of the country’s north and west where there are Tajik, Uzbek, and Hazara minority enclaves long opposed to the Islamist insurgents. The Taliban would then dominate much of the south and east, leaving Afghanistan divided and still violent indeed until, perhaps, like the South Vietnamese government, the one in Kabul collapsed.

Still, it’s unlikely the Taliban will ever again risk harboring large numbers of transnational terrorists or stand by as a bin Laden-style attack is planned in Afghanistan’s mountains or valleys. After all, its goals have always been Afghan-centric, not global. What’s more, it appears that its negotiators have tacitly promised not to protect or ally with Al Qaeda or its newer offshoot, the Islamic State branch in Afghanistan (which, in any case, is anything but a prospective ally of theirs).

Of course, transnational terrorists have never needed Afghanistan to hatch attacks on the West. Much of the planning and logistics for the actual 9/11 attacks occurred in Germany and even in the United States itself. In addition, partially thanks to America’s never-ending war on terror, there are increasing numbers of ungoverned spaces and tumultuous regions in dozens of countries in a band stretching from West Africa to Central Asia. Should the US military really station tens of thousands of troops in all those locales? Of course not. Among other things, leaving aside the expense of it to the American taxpayer, US soldiers would only inflame local passions and empower local terror outfits.

So here we are knowing there is little the United States can do to change the ultimate outcome in Afghanistan. The only question of consequence is: Could Donald Trump be the 21st century’s Richard Nixon? Could he do what no one in his position over the last 18 years has had the political courage to do and end—his phrase—a “stupid” war that has come to seem eternal? If “only Nixon could go to China,” is it possible that only Trump can extract the US military from Afghanistan? God help us, but that seems conceivable.

Now, some in the foreign policy establishment will balk at any eventual Trumpian peace agreement. Army Gen. Mark Milley, the president’s nominee for chairman of the Joint Chiefs of Staff, for instance, recently bucked his boss during confirmation hearings. He told senators that withdrawing from Afghanistan “too soon,” according to The New York Times, would be a “strategic mistake.” Likewise, Michael O’Hanlon of the Brookings Institution, a typical Washington foreign policy pundit, has already complained that the current US peace talks with the Taliban in Doha will only lead to a Vietnam-style denouement where US negotiators use a negotiated agreement as a fig leaf to save face, declaring “victory,” while essentially accepting future defeat. And, in this case, O’Hanlon is probably right on the mark, even if wrong to reject such an approach.

Count on this: The end of the American military mission in Afghanistan will be unfulfilling and likely tragic. Still—and here’s where O’Hanlon and his ilk couldn’t be more off the mark—like Vietnam before it, the Afghan war should never have been fought for these last almost 18 years, never could have been won, never will be won, and should be ended in some fashion, even a Trumpian one, as soon as possible.