U.S. refueling aircraft and warships have been dispatched to safeguard U.S. interests as the deadly conflict shows no sign of abating.

Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

Iranian news media and residents of Tehran say the damage from the latest Israeli strikes appears to be significant, with several apartment buildings badly damaged. Residents say they are hearing ambulance sirens and fire trucks racing to the scenes and rescue workers are working to find casualties in the rubble.

Israel's conflict with Iran represents far more than another Middle Eastern crisis—it marks the emergence of a dangerous new chapter in nuclear rivalries that has the potential to reshape global proliferation risks for decades to come.

Global investors may be underpricing the impact of a conflict between Israel and Iran, market watchers warned on Monday, as stocks rallied despite escalating warfare in the Middle East. The two regional powers continued trading fire on Monday, marking the fourth consecutive day of fighting since Israel launched airstrikes against Iran last week.

A White House official said President Trump had decided not to sign onto a statement drafted for Group of 7 allies that urges restraint from both Israel and Iran, which have been trading attacks for days.

Iran is one of the world’s top oil producers, and may try to block the Strait of Hormuz, a key export channel.

WTI Oil prices are easing on Monday, retracing part of Friday’s nearly 6% surge after slipping from the key $70 level, now holding as resistance. Traders remain on edge over escalating Israel–Iran tensions, most recently encapsulated by US President Donald Trump’s comments outside the White House on Monday.