Iran’s Islamic Revolutionary Guard Corps (IRGC) has publicly showcased a large underground missile base near the Persian Gulf coast in a show of force while tensions with Washington reach new heights.

A video broadcast by Iran’s state media on Friday showed the head of the IRGC, Major General Hossein Salami, touring a large underground tunnel lined with missiles and missile launchers.

“What you see today is one of several IRGC Naval strategic missile facilities,” Salami was quoted as saying by the MEHR news agency. “Behind us, you can see a column of these missiles and their launch systems. These columns stretch for kilometers,” Salami added.

“These missiles have ranges of hundreds of kilometers, enjoy pinpoint accuracy and huge destructive power, and can overcome the enemy’s electronic warfare equipment,” Salami said. He added that in the past year, the Iranians had built underground “missile cities” along the Gulf coastline, warning of a “nightmare for Iran’s enemies.”