US Defense Secretary Lloyd Austin on Wednesday confirmed that the Biden administration halted the delivery of high payload munitions to Israel due to concerns over a possible Israeli military offensive in the Gaza city of Rafah.

“We’ve been very clear … from the beginning that Israel shouldn’t launch a major attack in Rafah without accounting for and protecting the civilians in that battle space,” Austin testified during a hearing of the US Senate Appropriations Committee.

According to US officials, the weapons delivery in question was supposed to contain 1,800 2,000-pound bombs and 1,700 500-pound bombs. Austin said on Wednesday that the US paused “one shipment of high payload munitions” without elaborating on the size or number of munitions.

Austin was the first senior Biden administration official to publicly outline a possible shift in US policy on arming Israel. The US is a close ally of Israel and its biggest arms supplier.

The paused delivery was the first time the US held up a weapons shipment for the Israel Defense Forces (IDF) since the outbreak of the Israel-Hamas war.

Hamas, the Palestinian terrorist group that rules Gaza, launched the ongoing war when it invaded southern Israel on Oct. 7, murdering 1,200 people and abducting 252 others as hostages. Israel responded with a military campaign aimed at freeing the hostages and incapacitating Hamas to the point that it can longer pose a major threat to the Israeli people from neighboring Gaza, a Palestinian enclave home to over 2 million people.

The US has been consistently supplying Israel with weapons since October. However, under heavy pressure from Democrats and progressive activists to oppose Israel’s war effort, President Joe Biden has adopted an increasingly critical posture toward the Jewish state. That transition peaked last month, when Biden threatened to pull back support for Israel due to the humanitarian situation in Gaza.

Austin argued on Wednesday that Israel didn’t need large bombs in a dense urban setting like Rafah.

A “small-diameter bomb, which is a precision weapon, it’s very useful in a dense, built-up environment … but maybe not so much a 2,000-pound bomb that could create a lot of collateral damage,” Austin said.

“We’ve not made a final determination on how to proceed with that shipment,” he added.

The US has sought to pressure Israel to forgo a significant military operation in Rafah, citing the potential for civilian casualties; Jerusalem has countered that a ground offensive is necessary to eliminate Hamas’ remaining battalions in the southern Gaza city.

Experts have told The Algemeiner that Israel must operate in Rafah, which Israeli officials have described as Hamas’ last bastion in Gaza, if the Jewish state wishes to achieve its war objective of eliminating the threat posed by the Palestinian terrorist group.

Israel this week began limited operations in Rafah, but it remains unclear when and if a full-scale military offensive will take place. Israeli forces have sent leaflets and other forms of messages to civilians in Gaza, urging them to evacuate to a humanitarian safe zone.

Austin stressed that US support for Israel is “ironclad.”

“We’re going to continue to do what’s necessary to ensure that Israel has the means to defend itself,” Austin said. “But that said, we are currently reviewing some near-term security assistance shipments in the context of unfolding events in Rafah.”

Republican lawmakers lambasted Austin and the Biden administration for the decision.

“If we stop weapons necessary to destroy the enemies of the State of Israel at a time of great peril, we will pay a price,” said US Sen. Lindsey Graham (R-SC), who argued Washington shouldn’t second-guess how Israel waged a war against Islamist terrorists committed to its destruction. “This is obscene. It is absurd. Give Israel what they need.”

Reps. Michael McCaul (R-TX) and Mike Rogers (R-AL) — the chairmen of the House Foreign Affairs and Armed Services committees, respectively — also slammed the Biden administration’s move.

“We are appalled that the administration paused crucial arms shipments to Israel. Withholding arms to Israel weakens Israel’s deterrence against Iran and its proxies like Hamas and Hezbollah,” the lawmakers said in a statement. “At a time when Israel continues to negotiate in good faith to secure the release of hostages, including American citizens, the administration’s shortsighted, strategic error calls into question its ‘unshakeable commitment’ as an ally. The administration must allow these arms shipments to move forward to uphold the United States’ commitment to Israel’s security and ensure that Israel can defend itself and defeat Hamas.”

Israeli officials have reportedly expressed “deep frustration” with the Biden administration over the weapons shipment pause. However, IDF spokesperson Rear Admiral Daniel Hagari said on Wednesday that the allies will resolve such issues “behind closed doors,” adding that coordination between the US and Israel has reached “a scope without precedent, I think, in history.”

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