How much a day of war on Iran costs the US

The article analyzes the ongoing Israeli-American war on Iran, stating that the conflict has become a contest of endurance. The central question is which side can withstand the most pain. The article, dated March 2026, suggests Iran's most effective weapon is its ability to damage the world economy, particularly through rising oil prices. This economic impact represents the United States' biggest vulnerability in continuing the campaign. The analysis highlights the potential for global economic disruption as a key factor in determining the war's outcome.

On March 11, 2026, buildings in Tehran, Iran sustained significant damage following reported US-Israeli strikes. The strikes occurred near Mehrabad International Airport in the capital city. Video shared online shows the extent of the destruction, including damage to buildings and vehicles. The news comes amid ongoing tensions and reports about potential conflict involving Iran, the US, and Israel. The reason for the strikes was not explicitly stated in the provided article.

Published on March 11, 2026, the article "How much a day of war on Iran costs the US" examines the potential financial implications of a hypothetical military conflict between the United States and Iran. The article, presented "By the Numbers," likely breaks down the estimated daily expenses associated with such a war. It appears within a larger news context covering US-Israel relations and Iran, including topics like Iran's weapons capabilities and key figures such as Mojtaba Khamenei. The article aims to provide readers with a factual understanding of the economic burden a war with Iran could place on the United States.

On March 10, 2026, US President Donald Trump stated that the US and Israel are nearing their war objectives in Iran and that the conflict could end soon. This announcement comes as US and Israeli forces continue their bombardment of Iran. Simultaneously, large gatherings have occurred throughout Iran in support of the newly appointed Supreme Leader, Mojtaba Khamenei. The ongoing conflict involves the US, Israel, and Iran, with the US and Israel conducting attacks while Iranians rally in support of their new leader. The reasons behind the conflict and the specific objectives of the US and Israel were not detailed in this report.

Amidst escalating tensions in the Middle East, Donald Trump claimed the conflict with Iran could end "very soon," though Iran stated it would determine the duration of missile attacks. The US president also suggested the US would hit Iran "20 times harder" if it blocked tanker traffic through the Strait of Hormuz. Israel launched new attacks in central Iran and Beirut, targeting Hezbollah. Four Iran-backed fighters were reportedly killed in US airstrikes in northern Iraq. The US will waive oil sanctions on some countries to ease shortages, and Turkey reported that NATO air defenses shot down an Iranian ballistic missile.

On March 9, 2026, Iran launched new attacks at Gulf Arab countries, escalating pressure in the Middle East. These events occurred alongside internal political developments in Iran, including the announcement of Mojtaba Khamenei, son of the late supreme leader, as the Islamic Republic's next ruler. Pro-government supporters gathered across Iran to pledge allegiance to the new leader. Simultaneously, an Israeli airstrike hit Dahiyeh, a suburb of Beirut, Lebanon. In Or Yehuda, a man was seriously injured in an explosion. Funerals were held in Tehran for Mehdi Hosseini, who was killed in a U.S.-Israeli strike.

A letter signed by Nazanin Zaghari-Ratcliffe and over 100 other Iranians living in the UK urges British Prime Minister Keir Starmer to avoid further involvement in the Iran conflict, arguing it strengthens the Tehran regime. The signatories, including former Iranian political prisoners, believe attacks on Iran reinforce the government's narrative of fighting Western imperialism. They propose peaceful measures to support internal opposition, such as providing Starlink internet access to counter communication blackouts. This letter contrasts with some diaspora voices, like Reza Pahlavi, who support attacks on Iran for regime change. The group emphasizes the importance of protecting political prisoners and providing communication tools rather than weapons to support democracy within Iran.

On March 10, 2026, some Iranians rallied in downtown Tehran to express their support for Mojtaba Khamenei. The demonstrations occurred amid speculation about his potential succession to the role of Supreme Leader. The rallies suggest a segment of the Iranian population is in favor of Mojtaba Khamenei assuming the position. The news article highlights these public displays of support, indicating a development in the ongoing discussion surrounding Iran's future leadership. The reason for the rallies is to show support for Mojtaba Khamenei as the new supreme leader.

Following the assassination of Ali Khamenei, Mojtaba Khamenei was appointed as Iran's new Supreme Leader by the Assembly of Experts on March 9, 2026. US President Donald Trump, who had warned against this selection amidst escalating US-Israeli conflict with Iran, expressed his disapproval and suggested the new leader's tenure may be short-lived, hinting at a similar fate to his father. Trump declined to reveal his plans for dealing with the new Iranian leader but stated his unhappiness with the appointment. Republican Senator Lindsey Graham echoed Trump's sentiment, suggesting a similar fate for Mojtaba Khamenei as his father. The US and Israel launched a joint attack on Iran on February 28.

The US and Israel launched airstrikes on targets across Iran on Monday, marking an escalation in the ongoing Middle East conflict, now in its second week. These strikes coincided with Iranian missile and drone attacks targeting Israel, US bases in the Middle East, and Gulf energy infrastructure. The attacks and counter-attacks occurred as large crowds gathered in Tehran to support Mojtaba Khamenei, Iran's newly appointed supreme leader. The reason for the strikes is the ongoing conflict between the involved nations. The strikes and public support for the new leader signal a deepening crisis in the region.

Following the death of Iran's Supreme Leader Ali Khamenei, his son Mojtaba Khamenei has been elevated to the position, a move presented by Iran as a sign of stability. However, Mojtaba's ascension introduces uncertainty due to his relative obscurity both domestically and internationally. Unlike his predecessors, he lacks significant public presence and experience, having primarily worked behind the scenes. His appointment was reportedly backed by the Islamic Revolutionary Guard Corps (IRGC), suggesting a potential strengthening of the security state. The IRGC reportedly overcame internal opposition and concerns regarding Mojtaba's qualifications and health to secure his leadership. This transition occurs during a period of heightened tensions in the Middle East.

The Assembly of Experts in Iran has reportedly chosen Ayatollah Ali Khamenei's son, Mojtaba Khamenei, as the next supreme leader, though an official announcement is delayed due to voting procedure disputes. If in-person voting is waived, the appointment could be declared as a consensus. Former President Rouhani suggested delaying the announcement to avoid distracting from defense efforts. The potential appointment faces opposition from figures like Donald Trump and internal concerns about inexperience during wartime. Currently, Iran is governed by a temporary tripartite leadership council, including President Masoud Pezeshkian, whose attempt to improve relations with Gulf states by apologizing for Iranian attacks was undermined by internal opposition, continued attacks, and criticism from Trump.

Following the assassination of Ayatollah Ali Khamenei in a US-Israeli strike, Iran's Assembly of Experts has reportedly reached a consensus on his successor. According to Assembly member Ayatollah Mohammad-Mahdi Mirbagheri, the selection process faces some remaining obstacles. The 88-member Assembly is constitutionally authorized to choose the Supreme Leader. Israeli military officials have threatened members of the Assembly of Experts against participating in the selection process. Another member of the body, Hojjatoleslam Jafari, expressed hope that the Iranian people will be satisfied with the decision, emphasizing the urgency of the matter.

In March 2026, amidst the ongoing war with Iran, President Trump stated that any new Iranian Supreme Leader would need US approval to maintain power. This declaration followed reports that Iran's Assembly of Experts had chosen a successor to Ayatollah Ali Khamenei, who died after the US-Israel attacks began on February 28. Trump emphasized his desire to prevent future military interventions, citing concerns about Iran developing nuclear weapons. Iranian officials, including Foreign Minister Abbas Aragchi, rejected US interference in their domestic affairs, asserting that the selection of a new leader is solely the Iranian people's decision. The Pentagon also confirmed the death of a seventh US soldier since the start of the war, who was wounded in Saudi Arabia on March 1. The death toll in Iran has risen to 1,332.

Iran's Assembly of Experts has selected a new Supreme Leader to succeed Ali Khamenei, who was killed in a joint US-Israeli strike in late February. While the chosen successor's name has not been publicly announced, the selection was confirmed by multiple members of the Assembly. Israel has warned it will target any successor and those involved in the appointment. Mojtaba Khamenei, the deceased leader's son, was considered a frontrunner, although his appointment faces opposition due to concerns about dynastic succession and the regime's human rights record. The selection process occurs amid escalating conflict between Iran and Israel, including strikes on energy infrastructure across the Gulf and inside Iran, with Russia reportedly providing Iran with intelligence.