The US president says he has told Iran it has to do "two things" to avoid military action, as the US builds up its forces in the Gulf.

The USS Abraham Lincoln, one of the US’s 11 aircraft carriers, entered Middle Eastern waters this week after an 11-day transit from the South China Sea.

His supporters gave greatest backing to an attack on Iran, with 51 percent approving of military strikes on the Middle Eastern nation, Politico’s survey found.

When President Trump announced last June that the U.S. military had carried out airstrikes in Iran, he declared that the goal of the operation was nothing short of halting the threat that Iran would e...

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The official, who was speaking on the condition of anonymity, said the USS Delbert D. Black had entered the region in the past 48 hours.

EU foreign policy chief Kaja Kallas says the move is a response to Tehran's deadly crackdown on protesters.

Satellite images show a steady and significant build-up of US military forces in the region.

Protesters in Iran are begging US President Donald Trump to launch military action to help topple the Islamic regime, with Iranians telling the ABC people are writing "President Trump please help" on ...

"We have a big armada next to Iran. Bigger than Venezuela," Mr Trump told the Axios news site on Monday, weeks after the US military seized Venezuelan President Nicolás Maduro.