These lawmakers were shaped by combat after 9/11. Now they're grappling with a new Mideast war

Many admit mixed feelings, taking satisfaction in seeing vengeance taken on the leadership of an Iranian regime that has targeted U.S. service members for decades, yet fearful that another generation of soldiers could soon face the same combat experiences that they did.

"Do I take gratification? You know there's the Marine side of me: Yeah, of course," said Arizona Democratic Sen. Ruben Gallego, whose company suffered some of the heaviest losses on the U.S. side during the Iraq War. "I know they killed a lot of American soldiers, American Marines. But do I also understand that I have a responsibility not to let my lust for revenge drive my country into another war?"

Experiences in the post 9/11 wars are also coloring the decisions of the Trump administration, given that top officials, including Vice President JD Vance and Defense Secretary Pete Hegseth, were once deployed to Iraq.

Gallego, like others on Capitol Hill, leaned heavily on his firsthand experience of fighting in the wars after the Sept. 11, 2001, attacks as he assessed the Iran conflict. Lawmakers wore bracelets etched with the names of friends killed in battle, told stories of coming under attack from Iran-backed militant groups and reflected on their own life-changing injuries suffered during combat.

Veteran lawmakers are wary of war

While the initial votes on Iran saw Congress divide mostly along party lines, with Republicans backing Trump's actions and Democrats warning of an extended conflict, veterans in both parties share deep reservations about entering the conflict.

"As somebody who knows a lot of friends that didn't come home and a lot of Gold Star families, that's why the week before the attack, I was actually one of the ones that was talking about caution and why we needed to avoid at all costs getting into another long, drawn-out Middle Eastern war," said Republican Rep. Eli Crane of Arizona, a former Navy SEAL who left college to enlist the week after the Sept. 11 attacks.

Crane said his concerns were partially assuaged by briefings from the Trump administration that indicated to him the president is not planning a drawn-out war. He voted against a war powers resolution that would have halted attacks on Iran unless Trump got congressional approval.

But Crane said wars are never straightforward. "I've been on military operations that did not go to plan many times, and so I understand the nature," he said, adding that he was calling for the Trump administration to approach the conflict with "humility and caution."

Gallego and other Democrats worry that it is too late for that approach and fear there could be more American casualties. So far, seven U.S. service members have died in the conflict with Iran, with another 140 wounded.

"War is dirty, and mistakes happen," Gallego said. The longer the conflict drags on, he added, the more chance there will be for U.S. military members to be killed. He said he saw that in Iraq when friends would be killed by seemingly random shots from enemy combatants.

Still, many Republicans argued that it was necessary to attack Iran to stop a regime that for decades has helped train and arm militant groups throughout the Middle East. Republican Rep. Brian Mast, who chairs the House Foreign Affairs Committee, led the debate on the House floor against the war powers resolution.

Mast, who served as an Army bomb disposal expert, now uses prosthetic legs after receiving catastrophic injuries from an improvised explosive device in Afghanistan. "Me especially, many of my other colleagues, no one wants to see our military go into combat or war," he said.

Then he added, "But Iran's terror, which has caused the deaths of thousands of Americans, it has to stop."

Trying to push soldiers to forefront of war debate

Important questions loom for Congress as the conflict with Iran unfolds and spreads to other parts of the Middle East. The price for the operation is already likely running into the billions of dollars, likely forcing the Trump administration to soon seek billions in funding from Congress. The outbreak of war has also scrambled global alliances and the future of U.S. foreign policy.

Shadowing it all is the potential of another drawn-out conflict. Lawmakers said they owe it to their fallen comrades to ensure that doesn't happen.

"To me, it's to speak out. It's to say another generation should not go fight in an open-ended, ill-conceived regime change war in the Middle East," said Democratic Rep. Pat Ryan, his hand moving to a bracelet etched with the names of friends who were killed during his two Army combat tours in Iraq.

Others remembered how frustrated they became with Washington during their service, especially as soldiers tried to fight with insufficiently armored vehicles and not enough troops.

"I know what it was like to be on the very end of the receiving line of the decisions made in Washington," said Democratic Rep. Jason Crow, who entered the Army as a private before being promoted to a captain and deployed to both Iraq and Afghanistan.

Crow said that front-line soldiers often suffered "because people stopped asking tough questions. People stopped being held accountable. Congress stopped voting on it."

Another veteran, Democratic Sen. Tammy Duckworth of Illinois, said that was one of the reasons she sought a congressional seat in the first place. As a Blackhawk helicopter pilot with the Illinois National Guard, Duckworth lost her legs when her helicopter was hit by a rocket-propelled grenade in Iraq.

"I ran for Congress so that when the drums of war started beating once again, I'd be in a position to make sure that our elected officials fully considered the true cost of the war," she said. "Not just in dollars and cents but in human lives."