WASHINGTON (CNN) -- As the House Democratic leadership opened a three day floor debate on a non-binding resolution condemning the Iraq troop increase Tuesday, Republican leaders sharply criticized the measure and warned of the larger effects of withdrawing from the region too early.

"The Democrat resolution to deny success in Iraq is the first step for them to cut funding for our troops in harm's way," Rep. Sam Johnson of Texas said in a GOP press conference. "They won't tell you that but that's what it is."

In the same press conference, House Minority Leader John Boehner of Ohio asserted that the U.S.would leave "chaos in our wake" if it withdraws from Iraq prematurely.

"You look what happened when we pulled out of Vietnam," Boehner said. "Look what happened when we pulled out of Lebanon. Look what happened in the early 90's when we pulled out of Somalia. We left chaos in our wake. That chaos has come back to haunt us. And if we pull out ofIraq that chaos will haunt us once again."

Meanwhile House Minority Whip Roy Blunt said it was best to not question the tactical decisions of the president and the army commanders.

"Let's let the commanders in the field and the commander-in-Chief make the decisions," Blunt said. "If the Democrats want to end the war, they can end the war -- put that resolution on the floor."