Oil prices climbed, and stock markets slipped Monday as investors and households got the first chance to see what the war in the Middle East could mean for their finances.

Washington has a long, complicated past when it comes to regime change. There was Vietnam in the 1960s and 70s, and Panama in 1989. There was Nicaragua in the 1980s, Iraq and Afghanistan in the years after 9/11, and Venezuela just weeks ago.

Iranian authorities say more than 200 people have been killed since the start of the strikes that killed Ayatollah Ali Khamenei and other senior leaders. The U.S. military said three service members have been killed, the first known American casualties from the conflict.

Iran retaliated by firing missiles and drones toward Israel and U.S. military bases in the region, and exchanges of fire continued into the night.

While presidents have the authority as the commander in chief to conduct certain strategic military operations on their own, the Constitution vests Congress with the power to wage war.

The remarks by two Iranian officials come as America has assembled its biggest deployment of aircraft and warships to the Middle East in decades. The buildup is part of President Donald Trump’s efforts to get a deal to constrain Iran’s nuclear program while the country struggles at home following nationwide protests.

On Day 1 of a ceasefire agreement between Iran and Israel that has already been violated, President Donald Trump vented his frustration with both countries. Trump commented, “We basically have two countries that have been fighting so long and so hard that they don’t know what the f--- they’re doing.”

The assessment, which has not been previously reported, was produced by the Defense Intelligence Agency, the Pentagon’s intelligence arm. It is based on a battle damage assessment conducted by U.S. Central Command in the aftermath of the U.S. strikes, one of the sources said.

The Trump administration on Tuesday postponed classified briefings for Senate and House members as lawmakers look for more answers about President Donald Trump’s directed strikes on Iranian nuclear facilities over the weekend and his announcement on Monday that the two countries had reached a ceasefire agreement.

Iran said the volley matched the number of bombs dropped by the United States on Iranian nuclear sites over the weekend. Iran also said it targeted the base because it was outside of populated areas.

Iran launched at least 180 missiles into Israel on Tuesday, the latest in a series of escalating attacks in a yearslong conflict between Israel and Iran and its Arab allies that threatens to push the Middle East closer toward a regionwide war.

That estimate is considerably lower than the toll reported by Human Rights Activists in Iran, a U.S.-based group that has been closely tracking the protests since they erupted after the Sept. 16 death of a young woman being held by the country’s morality police.

Human rights groups say more than 100 people have been killed in Iran since the death of a 22-year-old woman who was in the custody of police. Iranian Americans in Chicago have a message they want everyone to hear: “Stand with Iranian women.”

The protests erupted Sept. 17, after the burial of 22-year-old Mahsa Amini, a Kurdish woman who had died in the custody of Iran’s feared morality police. Amini had been detained for an alleged violation of strict Islamic dress codes for women. Since then, protests spread across the country and were met by a fierce crackdown.

The protests were triggered by the death of 22-year-old Mahsa Amini, who died in a hospital three days after being apprehended by the morality police in Tehran and taken to a “re-education center” for not abiding by the state’s hijab rules.

World powers opened a fifth round of talks with Iran aimed at bringing the United States back into the landmark 2015 nuclear deal meant to prevent the Islamic Republic from obtaining an atomic bomb, with both sides expressing hope Tuesday that it might be the final series of negotiations.