"Whoever wants their land to become the main battlefield, go ahead," Guards commander Hossein Salami told a news conference in Tehran.

"We will never allow any war to encroach upon Iran's territory.

"We hope that they don't make a strategic mistake" as they have before, Salami said, before listing past US military "adventures" against Iran.

Salami was speaking at Tehran's Islamic Revolution and Holy Defence museum during the unveiling of an exhibition of what Iran says are US and other drones captured in its territory.