Trump posted online that Chicago was "about to find out why it's called the Department of WAR," but later said his administration wouldn't go to war with American cities but rather "clean them up."

US President Donald Trump threatened to unleash his newly rebranded "Department of War" on Chicago, further heightening tensions over his push to deploy troops into Democratic-led US cities.

The president had said on social media that Chicago was “about to find out why it’s called the Department of WAR,” drawing a fierce rebuke from Democrats.