Peace Deal Declared to End “12‑Day War”

Donald Trump proclaimed a full ceasefire between Israel and Iran on Monday, marking what he described as the end of a “12‑day war” that forced millions from Tehran and sparked grave fears of escalation. He posted on Truth Social that Iran would halt its operations at midnight ET, followed by Israel twelve hours later, culminating in a 24‑hour cessation of hostilities.

Trump touted the move as a diplomatic breakthrough, congratulating “both Countries, Israel and Iran, on having the Stamina, Courage, and Intelligence to end” the conflict. He asserted that the agreement was brokered in discussions with Prime Minister Netanyahu and through U.S. envoys in dialogue with Tehran, with Qatar playing a key intermediary role.

Iran’s foreign minister, Abbas Araghchi, echoed that Tehran’s forces stood down at 4 a.m. Tehran time if Israel ceased its attacks by then, though he clarified that a final decision on halting military operations was pending. Israel’s military has yet to formally acknowledge the ceasefire, and missile alerts and strikes were still reported over Tel Aviv, Beersheba and the Golan Heights in the hours following the announcement.

The conflict began on 13 June when Israel launched airstrikes on Iran’s nuclear and military infrastructure, including sites near Natanz, Isfahan and Tehran. That response, which Israeli authorities described as necessary to counter an alleged Iranian march towards nuclear weapons capability, included the destruction of centrifuge material and the deaths of senior Iranian military figures and nuclear scientists. Iran retaliated with waves of missiles and drones aimed at Israeli territory; Israel intercepted many of them, but civilian casualties were reported in Beersheba and Tel Aviv.

The conflict widened when the United States joined with bunker‑buster strikes on Iranian underground nuclear facilities over the weekend, prompting Iran to retaliate by targeting the U.S. air base at Al Udeid in Qatar. The attack caused no casualties, and Trump later thanked Iran for the “early notice,” calling it a “very weak response”.

Though Trump dismissed European diplomatic efforts as ineffective, he warned that U.S. involvement remained a distinct possibility if Iran escalated further, positioning American strikes solely against nuclear targets. Internal Israeli pressure also rose; Prime Minister Netanyahu reportedly instructed ministers to refrain from public commentary as military activity approached a pause.

Humanitarian fallout during this period has been acute. Over 650 Iranians have died, according to Iranian health data, including civilians, and over 200 Israeli military and civilian fatalities have been reported. Tehran saw large-scale evacuations as power and internet access faltered.

International bodies raised alarms over the bombardment of nuclear facilities. The International Atomic Energy Agency cautioned against striking enrichment sites due to risks of radiological contamination. Legal experts also voiced concerns that the strikes on civilian infrastructure—including hospitals and residential neighborhoods—could constitute violations under international humanitarian law.

Despite the ceasefire declaration, uncertainty remains. Iran’s foreign minister warned that if Israeli attacks persisted past 4 a.m. Tehran time, hostilities could resume. Similarly, Israeli officials reported continued launcher of missiles from Iran, demonstrating that the ceasefire may be fragile.

Regional and global reactions have been varied. Qatar’s prime minister was credited with facilitating Iran’s acceptance of the U.S.-proposed ceasefire. European negotiators, meanwhile, expressed frustration that efforts in Geneva had produced little movement before hostilities intensified. Both Russia and China urged restraint and urged full de‑escalation.

Markets responded positively to the ceasefire announcement, reflecting investor hopes for regional stability, yet the humanitarian toll and legal implications—the destruction of nuclear infrastructure, civilian casualties, and potential violations of international law—leave an ambiguous legacy for a war that surged in intensity over just under two weeks. The path ahead now hinges on whether both nations uphold the phased withdrawal and open room for diplomatic resolution amid deep mistrust.