The U.S.-Iran Conflict of 2025-2026: A Comprehensive Report

A major military confrontation between the United States and Iran, involving Israel and regional actors, reshaped the Middle East over eight months. This report synthesizes events from late 2025 through mid-2026.

Background and Pre-Conflict Tensions

Economic Crisis and Domestic Unrest in Iran

In late December 2025, nationwide protests erupted in Iran, initially sparked by economic grievances including soaring inflation, high unemployment, and the collapse of the Iranian rial. The protests escalated into a significant anti-government movement, representing the largest such challenge to the government since 2022.

The Iranian government responded with a crackdown. A US-based human rights organization reported over 6,400 confirmed civilian deaths, with an additional 11,280 fatalities under review. Another source estimated the total death toll at over 6,500, while Iranian authorities reported just over 3,000 casualties, including security personnel. Reports indicated that over 50,000 people were detained. The government imposed an internet blackout and labeled the events "riots" instigated by the US and Israel.

US Statements and Military Posture

During the protests, US President Donald Trump issued warnings against the Iranian government's use of force against peaceful protesters. In early January, Trump posted on social media: "Iranian Patriots, KEEP PROTESTING... HELP IS ON ITS WAY." He later stated, "the United States of America will come to their rescue," declaring the US military was "locked and loaded, and ready to go."

The US significantly augmented its military presence in the Middle East. The USS Abraham Lincoln aircraft carrier strike group was deployed to the region. In late February, the US ordered the USS Gerald R. Ford, its largest aircraft carrier, along with escort ships, to the Middle East. Analysts noted this was one of the largest military buildups in the region in recent years. US officials stated the military was preparing for the possibility of a sustained campaign.

Diplomatic Efforts Pre-Conflict

Oman facilitated indirect discussions between the US and Iran regarding Iran's nuclear program. The US expressed a desire to broaden talks to include Iran's ballistic missile program, its support for regional armed groups, and its human rights record. Iran insisted the talks focus solely on its nuclear program.

The negotiations were reported to have made some progress, with a US official noting Iran would present detailed proposals. However, the talks were suspended following an Israeli attack on Iran in June 2025, a 12-day conflict which included US bombing of three Iranian nuclear sites.

Despite the suspension, indirect talks resumed in Oman in February 2026. Iran's foreign minister described the initial discussions as "a very good start." However, within 48 hours of these talks, US and Israeli military operations against Iran commenced.

Outbreak of Major Conflict: Operation Epic Fury

Initial Attacks and Declared Objectives

On February 28, 2026, the United States and Israel launched coordinated military strikes against Iran, an operation President Trump announced as "Operation Epic Fury." The initial wave of airstrikes targeted nearly 2,000 "aimpoints" in the first few days.

President Trump outlined stated objectives for the operation:

1. Degrading Iran's missile capabilities
2. Destroying Iran's navy
3. Ensuring Iran can never obtain a nuclear weapon
4. Containing Iran's proxy forces

The stated goal subsequently expanded to include encouraging the Iranian people to overthrow their government (regime change). A senior US official indicated the operation was to prevent Iran from becoming immune to military action. The White House characterized the military action as a response to an "imminent threat" posed by Iran, though this justification was later reported by the Pentagon to be "without basis in fact" after operations began.

Iranian Response and Regional Escalation

Following the initial strikes, which resulted in the death of Supreme Leader Ayatollah Ali Khamenei and other senior officials, Iran retaliated. The Iranian government stated it would respond to any attack with a "decisive and proportionate" response, targeting all hostile force bases, facilities, and assets in the region.

Iran launched hundreds of ballistic missiles and drones targeting Israel and several neighboring countries, including the United Arab Emirates, Saudi Arabia, Oman, Bahrain, Kuwait, and Qatar. These states host US military bases, which Iran considered legitimate targets.

Military Campaign Developments

The US declared air superiority over Iran within days of the campaign's start, enabling the deployment of large numbers of precision-guided gravity bombs. Defense Secretary Pete Hegseth stated that US weapon stockpiles allowed the campaign to continue.

Iran's military strategy centered on a stated policy of asymmetric retaliation, targeting similar categories of sites in Israel and the Gulf as those attacked in Iran. This included targeting energy infrastructure. A strike on Iran's Asaluyeh gas complex was followed by an Iranian strike on Qatar's Ras Laffan LNG facility, which reduced its export capacity by 17%. Attacks extended to oil refineries in Saudi Arabia and Kuwait, and gas facilities in the UAE. Iran also effectively closed the Strait of Hormuz to most commercial shipping, a vital chokepoint for global oil and LNG.

The conflict had a significant impact on civilian infrastructure, with the World Health Organization reporting "multiple attacks on health" in Iran. Estimates placed the total death toll across all involved countries at over 5,000 within the first six weeks, including more than 1,600 civilians in Iran.

Within six weeks, over 5,000 people were dead across all involved countries, including more than 1,600 civilians in Iran alone.

Diplomatic Maneuvers and Ceasefire Negotiations

Mediation and Proposals

Throughout the conflict, Pakistan served as a key mediator, conveying proposals between Tehran and Washington. Reports indicated China pressed Iran to accept a ceasefire.

US 15-Point Proposal: A US proposal, reportedly delivered via Pakistan, called for a one-month ceasefire, the permanent opening of the Strait of Hormuz, Iran's commitment to never develop nuclear weapons (including dismantling facilities and banning enrichment), an end to support for regional proxies, and limits on its missile program. In return, the US offered to support the suspension of sanctions and support for a civilian nuclear plant.

Iran's 10-Point Plan: Iran's counter-proposal demanded the complete cessation of war, an end to all regional conflicts, the full lifting of sanctions, US military withdrawal from the Middle East, the release of frozen assets, full compensation for reconstruction, and a commitment to not seeking nuclear weapons. Reports also suggested Iran proposed a fee of up to $2 million per vessel to transit the Strait of Hormuz.

Ceasefire Agreement

On April 8, 2026, just before a US deadline to attack Iranian power plants and bridges, President Trump announced a two-week ceasefire, which he described as a "double sided CEASEFIRE!" The suspension of bombing was conditional on Iran agreeing to the "COMPLETE, IMMEDIATE, and SAFE OPENING of the Strait of Hormuz."

Iran's Foreign Minister confirmed safe passage through the Strait would be coordinated with Iranian armed forces for the two weeks. Both Iran's Supreme National Security Council and the White House claimed victory.

The ceasefire was extended indefinitely. President Trump stated the extension was due to Tehran's government being "seriously fractured" and pending a "unified proposal" from their negotiating teams. A US naval blockade of Iranian ports was maintained. A planned second round of peace talks in Islamabad was put on hold, and negotiations remained at a standstill.

Post-Ceasefire Dynamics and Analysis

A Stalemate

Despite the ceasefire, no comprehensive agreement was reached to formally end the war. The US maintained its blockade, and Iran continued to exert control over the Strait of Hormuz. Both sides stated their conditions for a final deal were not being met. President Trump expressed dissatisfaction with Iran's latest proposals, stating: "They're asking for things that I can't agree to."

Geopolitical Consequences

The conflict had a destabilizing effect on the Middle East and global geopolitics.

• US Alliances: The operation was launched without prior consultation with many US allies. The conflict led to a rift with NATO allies and criticism from nations like Australia, which refused to send military assets. The Trump administration criticized allies publicly for not providing support.

• Global Economy: The closure of the Strait of Hormuz caused a major disruption to global energy markets, leading to a surge in oil prices, which at points exceeded $110 per barrel. This contributed to inflation concerns and economic instability globally.

• Iran's Position: Despite suffering significant military and leadership losses, the Iranian government did not collapse. Its regime maintained internal control, and its strategy of asymmetric warfare by targeting regional energy infrastructure proved effective.

• Great Power Rivalries: The conflict damaged the US position relative to rivals. China and Russia provided Iran with diplomatic and intelligence support. Higher oil prices benefited Russia, which also had some sanctions temporarily eased. China brokered the ceasefire, enhancing its diplomatic role. The conflict diverted US attention from the Indo-Pacific, a region the US had previously signaled as its primary strategic priority.

Despite suffering the loss of its Supreme Leader and significant military damage, the Iranian government did not collapse.

Military Toll

The conflict involved extensive military engagement over several weeks. The US military reported striking over 13,000 targets. The US Navy sank an Iranian warship. Iran claimed to have shot down US aircraft. The US conducted a high-profile rescue mission to retrieve two downed airmen from Iranian territory. The U.S. military reported six U.S. service members killed in the Iran operation.