South Dakota’s Congressional leaders are praising President Donald Trump for his action of joining Israel for a missile-launched attack this weekend in Iran, with the intent to target and dismantle Iran’s nuclear capabilities and demand regime change.

“Our objective is to defend the American people by eliminating imminent threats from the Iranian regime, a vicious group of very hard, terrible people,” Trump said Saturday, Feb. 28, calling the strikes, “a massive and ongoing operation.”

Trump has since faced scrutiny for a lack of clarity about the timeline and overall goals of the war, and acting without the direct approval of Congress, which has the power to officially declare war for the U.S. Lawmakers are also in heated debate about whether the Trump’s decision may violate the Constitution, with Democrats calling for a war powers resolution vote to stop the effort, according to multiple military outlets.

More: Live updates: Iran conflict continues; 3 US fighter jets crash in Kuwait

Ayatollah Ali Khamenei, Iran’s supreme leader, was directly targeted, a Middle Eastern official told USA TODAY. Khamenei was killed in the attacks on Feb. 28, according to Israeli sources who told USA TODAY, CNN and Reuters. He was 86 and had led Iran since 1989.

Iran retaliated with drone and missile strikes, hitting American and Israeli targets, including a U.S. Naval base in Bahrain. Iran said its enemies would be “decisively defeated.”

At least four Americans and an estimated 200 other individuals have been killed, and an estimated 700 injured as of March 2.

President Trump said he expects more to come.

Here’s what South Dakota Congressional leaders, along with former South Dakota Gov. Kristi Noem, who now sits at the helm of the Department of Homeland Security as secretary, have to say about what has been named by the administration as Operation Epic Fury.

U.S. Senate Majority Leader John Thune

“For years, Iran’s relentless nuclear ambitions, its expanded ballistic missile inventory and its unwavering support for terror groups in the region have posed a clear and unacceptable threat to U.S. servicemembers, citizens in the region, and many of our allies,” said Thune, a Republican, the morning of Feb. 28 in a comment from his office.

“Despite the dogged efforts of the president and his administration, the Iranian regime has refused the diplomatic off-ramps that would peacefully resolve these national security concerns. I commend President Trump for taking action to thwart these threats,” Thune said, thanking Secretary Rubio for providing updates on these issues throughout the week.

“I look forward to administration officials briefing all senators about these military operations,” he said. “I commend the bravery of the servicemembers carrying out these operations and pray for the safety of those in harm’s way.”

U.S. Sen. Mike Rounds

Rounds, a Republican, said Trump took “the right course of action” when handling the strike.

Rounds later congratulated the United States military and Trump on the death of the Iranian leader, stating the moment “offers a path for a more peaceful Middle East.”

U.S. Rep. Dusty Johnson

Johnson, a Republican and the lone U.S. representative for South Dakota, stated the Iranian regime “is full of theocratic thugs and is the world’s largest state sponsor of terror.” He said Trump had given multiple opportunities to change direction.

“I’m praying for the safety of America’s servicemembers, and our allies involved in Operation Epic Fury,” Johnson stated on social media.

DHS Secretary Kristi Noem

Noem, who left her governorship after she was appointed secretary at the beginning of Trump’s current term, took to social media as well, stating she was actively monitoring any potential threats against America.

“I am in direct coordination with our federal intelligence and law enforcement partners,” she said.