Editor's note: Amitai Etzioni is a sociologist and professor of international relations at George Washington University and the author of several books, including "Security First" and "New Common Ground." He was a senior adviser to the Carter administration and has taught at Columbia and Harvard universities and the University of California, Berkeley.
(CNN) -- Before I explain why I believe the time has come to start a stop-the-war movement, I should say that I am not one of those intellectuals who has never worried about the fate of their loved ones or gotten his own boots dirty.
My son completed a five-year stint in the U.S. 1st Armored Division. As an Israeli commando, I saw a lot of fighting during Israel's war for independence. My unit started fighting with 1,100 members; when the fighting stopped, 700 were dead and buried or wounded. And we killed all too many on the other side.
I abhor war and believe we should fight only when there is a clear and present danger, when all other means for resolving a conflict have been truly exhausted and to protect the innocent. Those are the three criteria of a just war. The war in Afghanistan used to meet these criteria. It no longer does.
We invaded Afghanistan to stop it from serving as a base for terrorists of the kind who attacked us on 9/11. This goal has been accomplished.
Fewer than 100 members of al Qaeda are in Afghanistan. There are many more in Yemen and Somalia, which we are not planning to invade.
The Taliban has no designs on us, beyond making us leave. After that, the people of Afghanistan can duke it out over which kind of regime they want. If the majority of the Afghan people don't want the Taliban to rule, they should fight for their rights, as they have shown they can when they defeated the Taliban in 2002 with limited help from us.
Some claim that we must keep fighting to secure human rights, especially women's rights, and a democratic regime in Afghanistan. However, nothing indicates that we can accomplish in this godforsaken 12th-century country what we did in Germany and Japan after World War II.
The metrics that the U.S. Army keeps inventing to show progress are pitiful. Having committed 100,000 troops and a similar number of "private" contractors against rag-tag, poorly equipped, illiterate locals, we captured a few scores of square miles, opened a few markets and a local government or two. But large and growing areas of Afghanistan are under Taliban control. We should neither die nor kill for an illusion.
Sometimes, a minor news item highlights a much greater issue.
A recent report from an embedded reporter for GlobalPost shows a 19-year-old American soldier getting shot in the head -- his helmet saved him from death -- as his unit traveled through Kunar Province in late August. They were surveying polling sites for the upcoming elections. Also, a homemade bomb, called an IED, damaged and set afire the lead vehicle of this small convoy and severely wounded its driver.
It seemed absurd to risk lives of Americans, our allies or Afghans to support faux elections.
In many parts of the country, ballot stations could not be opened. In others, massive fraud took place. Adding insult to injury, we congratulated the Afghan government on holding "successful" elections. That way, we did not have to admit to the world and each other that whatever the Karzai government is -- one of the most corrupt governments in the world, a foundation of a new narcostate -- democracy it ain't, by a long shot.
How much our entanglement in Afghanistan is turning into a sad farce became all too clear when President Obama flew to Kabul to tell Karzai that he ought to stop corruption.
When, in response, Karzai started negotiating a peace deal with the Taliban, the White House rolled out the red carpet for Karzai and announced that from now on, the U.S. will focus on low-level corruption. Moreover, it turns out that major sources of corruption are our corporations and the CIA.
It's time to bring our troops home.
To encourage our president and Congress to withdraw the troops, let's fasten to our lapels white ribbons (for peace) with black letters (mourning those who died) that read "Bring them home." The time has come to organize teach-ins and antiwar groups. Instead of another march on Washington, let there be rallies across America. Bring the troops home.
The opinions in this commentary are solely those of Amitai Etzioni.