WASHINGTON: A US naval strike group led by an aircraft carrier has deployed to Middle Eastern waters, the United States said Monday, as Tehran warned it was ready to hit back at any American attack launched in response to a crackdown on anti-government protests.
The protests started in late December, driven by economic grievances, but turned into a mass movement against the Islamic Republic, with huge street demonstrations for several days from January 8.
US President Donald Trump has previously threatened to intervene, saying last week that Washington was sending a "massive fleet" to the region, "just in case."
The deployment of the USS Abraham Lincoln carrier strike group dramatically boosts American firepower in the region.
The strike group has arrived in the Middle East, US Central Command said Monday, adding it was there "to promote regional security and stability."
The United States backed and briefly joined Israel's 12-day war against Iran in June, and while Trump last week appeared to step back from his threats of new military intervention, he has never ruled the option out.
'Regret-inducing response'
Iran's foreign ministry warned on Monday of a "comprehensive and regret-inducing response to any aggression."
Ministry spokesman Esmaeil Baghaei said: "The arrival of such a battleship is not going to affect Iran's determination and seriousness to defend the Iranian nation."
A senior military official told state television that the "buildup of extra-regional forces and equipment ... would not act as a deterrent but rather increase their vulnerability and turn them into accessible targets".
Meanwhile, a new anti-US billboard has appeared in the central Enghelab Square in Tehran that appears to show an American aircraft carrier being destroyed.
"If you sow the wind, you will reap the whirlwind," its English-language caption reads.
In Lebanon, Iran-backed Shiite fighter group Hezbollah, whose capabilities and leadership were severely degraded in a war with Israel in 2024, organised a rally in support of the Islamic Republic featuring an address by its leader Naim Qassem, who warned "a war on Iran this time will ignite the region."
Iran's Gulf neighbor, the United Arab Emirates, which hosts a US airbase, said it would not allow attacks on Iran to be launched from its territory.