WASHINGTON — The White House pushed back Thursday against growing bipartisan criticism of a negotiated settlement to the war with Iran, arguing its concessions to the Islamic Republic were contingent on its conduct and essential to securing peace.

The administration’s defensive posture came as details of the framework agreement, known as a memorandum of understanding, were finally shared with the public, revealing a raft of compromises with Tehran long opposed by Republicans.

Vice President JD Vance, who helped negotiate the deal, told reporters Thursday that the deal was structured to reward Iran for good behavior. But the text of the agreement suggests otherwise.

The Trump administration agreed to release billions of dollars in Iranian assets that were frozen and restricted by the United States “upon the implementation” of the memorandum — before any further actions are taken or additional negotiations begin. The president will issue sanctions waivers on Iranian oil, allowing Tehran to resume trading its most valuable export and breaking with decades of policy. And to facilitate that trade, boosting Tehran’s revenues, Trump agreed to immediately end a U.S. naval blockade of Iranian ports.

Still more concessions were offered to the Iranians, including a commitment by the U.S. administration to establish a fund of “at least $300 billion for the reconstruction and economic development of the Islamic Republic” — in effect providing reparations for the war Trump started.

“All required licenses, waivers and permissions needed for the relevant financial transactions will be granted by the United States of America,” the memorandum reads.

Taken together, the document reads as a stunning reversal of U.S. policy toward Iran after decades of concern across administrations in Washington — including throughout Trump’s two terms — that the Islamic Republic represents the nation’s greatest security threats as the world’s largest state sponsor of terrorism.

Criticism from Republican senators, in particular, has been sharp and swift.

Sen. Roger Wicker (R-Miss.), chairman of the Senate Armed Services Committee, said the $300-billion fund “would make Iran’s payoff under President Obama’s 2015 deal look like a pittance by comparison.” And Sen. Ted Cruz (R-Texas) accused the Trump administration of giving Iran money it would use to kill Americans.

“History demonstrates that giving billions of dollars to theocratic lunatics who want to murder us is an exceptionally bad idea, and I think, unfortunately, the president is receiving some really bad advice on this deal,” Cruz said. “I don’t want to see us send a penny to the ayatollah. And I hope that we don’t.”

The Obama-era deal, known as the Joint Comprehensive Plan of Action, included structured sanctions relief for Iran in exchange for concrete and verifiable steps by Tehran to dismantle much of its nuclear program — a framework that Republicans broadly criticized at the time.

By contrast, Trump’s agreement commits the United States to pursuing economic relief for Iran while providing no clarity about the future of Iran’s nuclear program — the very issue Trump cited as the rationale for launching the war.

The memorandum includes a pledge by Iran to never purchase or construct nuclear weapons — a vow the Islamic Republic has made multiple times before, including by signing the Nuclear Non-Proliferation Treaty, in a religious edict issued by the late supreme leader and in the Obama-era nuclear accord.

Detailed negotiations over Iran’s nuclear program — including whether Tehran could continue domestic uranium enrichment, at what level, and under what monitoring regime — were left for another day.

For more than a decade, the U.S. intelligence community has assessed that Iran sought a threshold nuclear capability, securing the strategic advantages of a nuclear power without incurring the costs of openly pursuing a bomb.

The agreement does include a commitment by Iran to do its “best” to bring commercial shipping traffic through the Strait of Hormuz, a vital international waterway, back to prewar levels. But critics of the president said he had to make deep, historic concessions just to secure a status quo ante upended by the war he started. And in the document, Tehran agreed to refrain from imposing a toll on ships transiting the strait for only a 60-day period.

“Unless you were homeschooled by a day drinker, no one’s confident that Iran is going to do anything,” Sen. John Kennedy, a Republican from Louisiana, told reporters this week.

Sen. Bill Cassidy, Kennedy’s Republican counterpart from Louisiana, called the deal “the worst foreign policy blunder in decades” that would have President Reagan “rolling over in his grave.”

“Iran’s nuclear ambitions were not curbed, and they have learned that threatening the Strait of Hormuz works and will undoubtedly leverage it in the future. Now, Iran gets to build brand-new infrastructure under this deal,” Cassidy said.

“Before the war, the strait was open, Iran was being crushed by sanctions, and 13 service members were still alive,” he added. “Now, 13 Americans are dead, families have paid billions at the pump, sanctions will be lifted, and the bombing has stopped.”

Despite mounting criticism, Trump put his signature to the memorandum on Wednesday night while attending a dinner with the French president in Versailles, a palace infamous for hosting a treaty signing that disgraced Germany at the end of the First World War.

He defended the agreement while in Europe and suggested further concessions might be forthcoming, including recognition of Iran’s claimed right to enrich uranium and a new willingness to tolerate its continued ballistic missile development — another program that Trump had vowed to eliminate as a central war aim.

“He took America to war — killing 13 soldiers, thousands of Iranian civilians and costing taxpayers $60 billion — to get rid of Iran’s missile program. And now that he’s lost the war, he pretends like it’s no big deal,” said Sen. Chris Murphy, a Democrat from Connecticut.

“Just unforgivable,” he added. “What a charlatan.”

War Secretary Pete Hegseth had harsh words for NATO allies during an address to his European counterparts on Thursday, announcing a six-month review of U.S. force deployment on the continent.

Hegseth said the review’s outcome will depend on how quickly European nations act to support themselves militarily.

“This will be a real review. It will be designed to ensure that NATO is moving fast and irreversibly toward Europe leading, stepping up to take primary responsibility for the defense of Europe,” he told NATO officials in Brussels.

Hegseth also lashed out at European countries for refusing to assist U.S. forces in the war against Iran, particularly those that withheld use of military bases.

TRUMP PRESSES NATO PARTNERS ON SUPPORT AS HEGSETH BLASTS HESITATION

“These allies, they put America’s sons and daughters, our sons and daughters, at risk by denying them the predictable access, basing and overflight that never should have been in question at all,” he said.

Hegseth then launched a more general critique of European policy, referencing migration and an emphasis on social policy over defense.

“Instead of tanks and fighters and air defenses, the focus has been on gender equity and climate change and defense austerity. Europe’s borders flew wide open, welfare states expanded, defense budgets cratered. Along with Europe’s belief in itself and its civilization,” Hegseth said.

GERMANY PLEDGES TO BUILD EUROPE’S STRONGEST ARMY AS NATO ALLIES ANSWER TRUMP PRESSURE

The wake-up call comes just days after Germany pledged to become a more powerful military force inside NATO, with Berlin’s ambassador to Washington telling Fox News Digital that the country is ready to assume greater responsibility for European security after decades in which the United States carried much of the alliance’s military burden.

“Germany is stepping up — we heard the call!” German Ambassador to the United States Jens Hanefeld told Fox News Digital in an exclusive interview.

Chancellor Friedrich Merz has said Germany’s armed forces should become the strongest conventional army in Europe, a goal Hanefeld said is now backed by Berlin’s new military strategy.

“Russia’s illegal war of aggression has shaken old certainties in Europe and Germany as the international rules we have relied on are being challenged,” Hanefeld said. “This changes the strategic environment we operate in.”

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“Today, Germany is Ukraine’s largest supporter,” Hanefeld said. “Germany’s decision to become Europe’s strongest conventional army, well anchored in the NATO alliance, is an ongoing commitment.”

Fox News’ Efrat Lachter and the Associated Press contributed to this report.