—Doug Collins of Georgia was a chaplain in Iraq.

—Tom Cotton of Arkansas, a Harvard Law School graduate, was an infantry platoon leader in Iraq and then was on a reconstruction team in Afghanistan. In between, he was a platoon leader at Arlington National Cemetery.

Cotton said the reason he ran for Congress is the same one that led him to enter the Army after the Sept. 11 terrorist attacks.

‘‘I felt we had been attacked for who we are — the home of freedom,’’ Cotton said. ‘‘And I worry now our liberty is threatened at home by the debt crisis we face, which in the long term will mean less prosperity and less opportunity, and therefore less liberty.’’

Cotton said he could easily see himself working with Duckworth and Gabbard on veteran’s issues. ‘‘They've carried a heavy load and we owe them a great debt,’’ he said.

At the same time, it’s clear the freshmen veterans have clear differences of opinion over policy matters. For example, Gabbard is a strong critic of the war in Afghanistan. She says the United States needs to get out as quickly and safely as possible. Cotton opposes setting timetables for withdrawal.

‘‘We’re trying to win a counter-insurgency war where we can put a friendly, allied, stable government in place,’’ Cotton said. ‘‘It’s certainly been a long and somewhat winding road, but on the whole, America and our interests in the world are much better off for having waged the war in Afghanistan.’’

There also will be differences over spending priorities. Cotton is reluctant to trim spending on defense as a way to deal with the deficit.