India, Aug. 2 -- US-Israel-Iran War Latest Live News: The US has stepped up both its military messaging and security warnings as tensions with Iran continue to escalate across the Middle East.

While Secretary of State Marco Rubio praised President Donald Trump's hardline approach toward Tehran, Washington also urged Americans in the region to consider leaving if the security situation deteriorates further.

US-Israel-Iran War Latest Live News: Rubio Says Iran Has Never Faced a President Like Trump

US Secretary of State Marco Rubio said Iran is dealing with a very different American administration under President Donald Trump, arguing that Tehran can no longer rely on the strategies it used with previous US governments.

Speaking in an i...