Iran's Islamic Revolutionary Guard Corps fired ballistic missiles and drones at U.S. military positions at the Ali al-Salem air base in Kuwait and the Fifth Fleet's Port Salman naval base in Bahrain early Sunday, hours after American aircraft struck Iranian coastal targets for the second night in a row. President Trump warned on Truth Social that if Tehran did not stand down, "the Islamic Republic of Iran will no longer exist."

The 24-hour exchange is the heaviest fighting since the U.S. and Iran signed a 14-point memorandum of understanding on June 17 meant to wind down their four-month war, and it has shifted the second round of retaliation onto the soil of two Gulf monarchies that host the largest American military footprint in the region. Friday's tit-for-tat had stayed at sea and on Iran's southern coast, including Qeshm Island; Sunday's brought ballistic missile and drone barrages over Bahrain and Kuwait that triggered both governments' air defenses.

What was hit

U.S. Central Command said its aircraft destroyed Iranian "military surveillance infrastructure, communication systems, air defense sites, drone storage facilities, and minelayer capabilities," calling the operation a direct response to an Iranian drone strike Saturday on the Panama-flagged tanker Kiku in the Strait of Hormuz. Ship-tracking data cited by CBS News showed the Kiku was using a corridor near the coast of Oman, an alternative the U.S. Navy's Joint Maritime Information Center expanded on Saturday to handle both inbound and outbound traffic.

The IRGC said in turn that it had "destroyed eight important US military facilities" at the two Gulf bases. A U.S. official told Reuters there were no American casualties and no major damage. Kuwait's armed forces said on X that "Kuwaiti air defenses are currently confronting hostile missile and drone attacks," and Bahrain's interior ministry urged citizens to "remain calm and head to the nearest safe place."

The Lebanon front

Hezbollah Secretary-General Sheikh Naim Qassem on Saturday rejected the trilateral Israel-Lebanon framework that Secretary of State Marco Rubio announced Friday, calling it "a humiliation, a disgrace, and a surrender of sovereignty" and declaring that "[t]his agreement is null and void." The framework, brokered without Hezbollah at the table, allows Israeli forces to remain in a security zone in southern Lebanon until the Iran-backed militia is disarmed.

Prime Minister Benjamin Netanyahu called the arrangement "a major blow to Iran and Hezbollah," and Defense Minister Israel Katz said the Israel Defense Forces had been instructed to "prepare for an extended stay in the security zone." Hezbollah said it would keep fighting until Israeli forces withdraw. The deal mirrors the contested ceasefire already in place, and it leaves Iran's most powerful regional proxy outside the diplomatic architecture even as Tehran trades fire with Washington over the Gulf.

The strait

Iranian Foreign Minister Abbas Araghchi warned Sunday that "[a]ny attempt to adopt new or separate arrangements compared to what is underway by the Islamic Republic of Iran, will only lead to more complicated situations and delays in the reopening of the Strait of Hormuz." The June 17 memorandum had committed Iran to use its "best efforts for the safe passage of commercial vessels with no charge for 60 days." Iran's chief negotiator, Mohammed Bagher Ghalibaf, told state-affiliated outlets last week that "the administration of the Strait of Hormuz will never go back to the way it was before the war."

Centcom said commercial vessels are continuing to transit the strait, through which about a fifth of the world's oil and liquefied natural gas moved before the war. Oil prices extended Friday's decline as more tankers exited the waterway.

Diplomatic fallout

The United Arab Emirates, Egypt, Saudi Arabia and Qatar condemned the Iranian strikes on Bahrain. Kuwait's foreign ministry said the attacks "at a time when regional and international efforts are aimed at de-escalation" constituted "a serious undermining of peace and stability." Iran's foreign ministry, for its part, called the American strikes "brutal attacks" and accused Washington of treating its commitments as something to be broken.

Iran's case for restraint is being undercut at home by economic pain. The country's official statistics agency on Saturday reported inflation at 88.6 percent year-on-year for the Persian month ending June 21, with food prices more than doubling, according to CBS News. Bahrain framed the Iranian strikes in starker terms, calling them "not a passing act, nor an isolated incident, but rather a deliberate approach and a systematic pattern of repeated aggression," as cited by CNBC. The dossier's sources skew center and lean-left; an administration rebuttal to Iranian charges that Washington broke the ceasefire first was not part of Sunday's reporting.

Whether the second night of strikes marks an escalation or the end of the ceasefire formally depends in part on how the IRGC reads its own warning. The Guard said Sunday that any further American action "will lead to a complete halt to the process." Trump's deadline, if there is one, is unstated. The 60-day clock on the June 17 memorandum runs to mid-August.