As the United States prepares “multiple actions” in response to a drone attack by Iran-backed militants that killed American soldiers, Kataib Hezbollah, one of the more powerful of Iran’s Iraq-based proxies, announced it is suspending all its military operations against U.S. troops in the region.

Speaking to reporters on Tuesday, U.S. President Joe Biden said he has decided on a military course of action in response to the attack on a U.S. base in Jordan near the border of Iraq and Syria that killed three American soldiers and wounded more than 40 others.

Neither Biden nor his officials provided details. But speaking to reporters aboard Air Force One, National Security Council spokesperson John Kirby said the goal is to ensure the U.S. degrades the groups’ capabilities to attack American troops and facilities, while sending a “strong signal to their backers” in Iran’s Islamic Revolutionary Guard Corps.

“The president will do what he has to do to protect our troops and our facilities and to look after our national security … interests in the region,” he said, adding that Biden’s order will be a “tiered approach” encompassing “potentially multiple actions.”

An umbrella group for Iranian-backed militias, the Islamic Resistance in Iraq, has claimed responsibility for the attack. The Pentagon says the drone strike has the “footprints” of Iran-backed Iraqi militia Kataib Hezbollah, although the U.S. has not given final attribution of who is responsible.

On Tuesday, Kataib Hezbollah said its suspension of military operations against U.S. troops in the region is done “in order to prevent embarrassment of the Iraqi government.”

“We will continue to defend our people in Gaza in other ways,” the group’s Secretary-General Abu Hussein al-Hamidawi said in a statement released by the group on Telegram.

Kataib Hezbollah’s announcement did not mention any threat of an American response. But the timing is no coincidence, said Matthew Kroenig, senior director of the Atlantic Council’s Scowcroft Center for Strategy.

“It is pretty simple: When America puts credible military options on the table, adversaries back down,” he told VOA.

Kataib Hezbollah’s statement to cease hostilities is unlikely to sway Washington from planning its response. Pentagon press secretary Major General Pat Ryder told reporters Tuesday that “actions speak louder than words,” and vowed “consequences.”

Amir Saeid Iravani, Iran’s ambassador to the United Nations, told Iranian journalists late Tuesday that Iran would “decisively respond to any attack on the country, its interests and nationals under any pretexts,” according to the state-run IRNA news agency.

Tough balancing act

Biden has been aiming to calibrate his retaliation to contain the growing risk of a regional war.

“I don’t think we need a wider war in the Middle East,” he said. “That’s not what I’m looking for.”

Deterring Iran and its proxies while preventing an all-out war is a tough balancing act for Biden. Ahead of the November presidential election, the action he takes must be seen as strong enough to avoid criticism from hawkish Republicans, yet measured enough that it will not draw Washington into another conflict.

Among the options that Biden has are targeting Iranian-backed militias in the region and launching strikes on Iran’s military targets or taking out their leadership — decisions that previous American presidents have taken in response to Tehran’s provocations.

In 1988, former U.S. President Ronald Reagan ordered Operation Praying Mantis, which crippled Iran’s naval fleet in retaliation for the mining of the USS Samuel B. Roberts that blew a massive hole in the ship’s hull and injured 10 sailors.

In 2020, former U.S. President Donald Trump ordered the drone strike that killed Iranian General Qassem Soleimani, who was blamed for numerous terrorist attacks internationally.

Following Soleimani’s killing, Tehran launched a barrage of missiles at U.S. bases in Iraq, causing injuries but no fatalities, and imposed sanctions on U.S. officials. A similar “token response” would be the best-case scenario for Biden, Kroenig said.

Some Republicans, including Senator Lindsey Graham, have pushed for a much harsher approach, suggesting on a recent Fox News interview that Washington should bomb IRGC headquarters inside Iran and “blow it off the map.”

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Republican Congressman Mike Gallagher told VOA Persian that Iran must answer for its attacks on Americans. “Iran is the primary source of chaos in the middle east, so it’s time for the Biden administration to abandon its policy of appeasement and rapprochement with Iran and reimpose and policy of maximum pressure,” he said.

Former Defense Secretary Leon Panetta said he believes the U.S. must have a strong response. “Iran is responsible for supporting these proxies. Whatever the administration is thinking about, it has to be directed against Iran,” he told VOA Persian.

Top officials in Biden’s own administration have argued that dealing with Tehran is key to the region’s security.

“The Iranian regime has been emboldened by the crisis and seems ready to fight to its last regional proxy,” said CIA Director William Burns, writing in a recent article in Foreign Policy magazine.

Asked if this coming response will credibly deter Iran, Biden said, “We’ll see.”

Credible deterrence

Despite retaliatory attacks from Washington, Iran-backed groups have launched more than 160 strikes on American military facilities in the region. Houthi militias, another Tehran proxy, also have continued their missile and drone attacks against commercial shipping in the Red Sea, despite multiple U.S. airstrikes against their infrastructure in Yemen.

The U.S. must consider other options said retired commander of the United States Central Command General McKenzie.

“Conduct retaliatory strikes that hurt them,” he told VOA. “I don’t think we need to limit ourselves to responses just in Syria and Iraq as we consider this.”

Others are skeptical the administration can achieve both deterring Iran and preventing a regional conflagration.

The goals are in conflict with one another, said Adam Weinstein, deputy director of the Middle East program at the Quincy Institute, a think tank that advocates for restraint in American foreign policy. Iran is unlikely to be deterred and U.S. troops placed in the region “serve as a tripwire” for wider conflict.

“We’re putting them in harm’s way for an unclear benefit,” he told VOA. “Or a benefit that’s minimal at best against an enemy that is really accountable to nobody, which are these Iran-aligned militias.”

There are about 900 U.S. troops in Syria and 2,500 in Iraq. U.S. officials say they are part of an ongoing operation to keep the Islamic State group from re-emerging and to provide a counterweight to Iran’s influence in the region.

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Just days before the drone attack that killed American soldiers, the U.S. and Iraq announced the beginning of talks to end the U.S.-led international military coalition in Iraq, continuing a process that has been stalled by the Israel-Hamas war. The attack is likely to delay such plans.

VOA national security correspondent Jeff Seldin and reporter Begum Ersoz of VOA’s Turkish Service contributed to this report.

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