A majority of Americans say they support recent U.S. airstrikes against Sunni extremist militants in Iraq, according to a new Pew Research Center/USA Today poll released Monday.

(Chart via Pew/USA Today) (Chart via Pew/USA Today)

It's the second survey in as many weeks showing support for President Obama's decision to launch targeted airstrikes in Iraq. Fifty-four percent say they approve of the decision, while 31 percent say they don't.

A larger share of Republicans (71 percent) support the airstrikes than do Democrats (54) or independents (50 percent).

Even as they approve of the airstrikes, Americans are more concerned about going too far in Iraq than they are about not going far enough to interdict Islamist militants who have swept through the country in recent months. Fifty-one percent say they are more worried about U.S. military action going too far; 32 percent say they are more concerned about not going far enough to stop the militants.

A Fox News poll released last week showed 65 percent of voters said they approve of the airstrikes. Just 23 percent said they disapprove.

The Pew/USA poll of 1,00 adults was conducted Aug. 14-17.