Forty-one percent of respondents believe both troops on the ground and airstrikes are necessary for the mission against ISIS, versus 35 percent who think it should be restricted to airstrikes; another 15 percent say no military action should be taken.

That’s a reversal from the NBC/WSJ poll in September, when 40 percent wanted just airstrikes and 34 wanted both airstrikes and combat troops.

The seven-point increase in those also wanting U.S. ground troops has been fueled mostly by groups that make up the GOP base. More self-described Republicans (up 14 points), men over 50 years old (up 18), white men (up 17) and seniors (up 10) now advocate for troops on the ground in the fight against the terror group. There’s been virtually no change since September among Democrats, young people, and white women.

About six in 10 Americans say that the military actions against ISIS are in the national interest of the United States, and only 16 percent disagree. That number is virtually unchanged in the past six weeks.