STEVE INSKEEP, HOST:
The killings are raising new questions about U.S. military strategy. One question is whether President Obama's surge of American troops worked. Another is whether U.S. troops are wining over the Afghan people or alienating them.
NPR's Tom Bowman has reported from the province where the civilians were shot.
TOM BOWMAN, BYLINE: The place where the killings happened was a no-go zone for American and even Afghan troops as recently as two years ago. It was Taliban country. That changed when soldiers from the 101st Airborne Division swept into the rural district in the dead of night in November, 2010.
Back then, Captain Davitt Broderick stood in his command post, a two-story adobe house in Panjwei, near Kandahar. He said that better security would lead to schools and clinics and fewer young men joining the Taliban.
CAPTAIN DAVITT BRODERICK: The couple of guys that were shooting at us, you know, they could be an active part of society next year if things go right.
BOWMAN: If things go right - and they did in that district. The so-called surge of U.S. forces helped push out the Taliban there. Now the staff sergeant accused of killing men, women and children - just a few miles from Broderick's outpost - could undermine the U.S. effort throughout Afghanistan. Security might be better in many parts of Afghanistan, thanks to that surge in troops, but the Americans could lose the support of the people.
JOHN NAGL: The ultimate prize in a counterinsurgency is the support of the population.
BOWMAN: John Nagl is a retired Army officer who helped write the Army's counterinsurgency manual with General David Petraeus.
NAGL: They are the ones who decide ultimately whether their future is better with the government and with its outside helpers, like the United States in this case, or if their fate is going to be better with the insurgents.
BOWMAN: Right now, there's growing anger at the United States. The Afghan parliament issued a statement saying the Afghan people had run out of patience with foreign soldiers. And the Taliban issued their own statement, saying the killings were caused by sick-minded American savages and vowing revenge.
NAGL: This has been an enormous gift to the Taliban. Their propaganda has long been that the Americans and their NATO allies are murderers and are occupiers.
BOWMAN: But U.N. reports show that a vast majority of civilian deaths are caused by the Taliban and not coalition forces. And it was fighting the Taliban - especially in the southern provinces of Kandahar and Helmand - that U.S. forces, as well as Afghan troops, have suffered most of their casualties.
MICHAEL O'HANLON: The sacrifices have been so enormous on all sides, that it would be just a horrible shame to lose sight of that, even as we lament what happened in the recent days.
BOWMAN: Michael O'Hanlon is a defense analyst at the Brookings Institution and has traveled frequently to Afghanistan.
O'HANLON: Even throughout the entire south, we've seen the level of violence go down by somewhere between a third to half over the last two years.
BOWMAN: Despite those security gains, it has been acts committed by American troops that have captured the attention of many Afghans and their leaders. Before Sunday's killings, the U.S. military was investigating a video that became public in January. It shows four Marines urinating on suspected dead Taliban in southern Afghanistan back in 2010. Another investigation is looking into what officers say was the mistaken burning of Qurans by U.S. soldiers in February. John Nagl says these incidents have been catastrophic for the U.S.-Afghan relationship.
NAGL: We are outsiders to that society, so we really need to be on our best behavior to accomplish our national security objectives, which is a stable government that can largely stand on its own against the threats it faces.
BOWMAN: Until it can stand on its own, the Afghan government needs American support, which is why O'Hanlon thinks the U.S.-Afghan relationship will survive these incidents.
O'HANLON: Bottom line: The Afghans still need us, and we still think their country is important for our security. And I would predict, therefore, that we will tough it out here.
BOWMAN: It may be tough there for U.S. troops in the days and weeks ahead. Commanders have tightened security at U.S. bases, preparing for possible revenge attacks. Tom Bowman, NPR News, Washington.
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