Iran digs symbolic "graves" for invading troops
Website says mass graves ready in desert area
An Iranian news agency has posted video on its website of what it said were mass graves dug ready for any invading forces.
The shaky images, accompanied by ominous music, show row after row of large trenches, in an unpopulated desert area.
The video was posted on the semi-official Fars news agency's website but there was no indication of when the film was made.
The website said the Institute for Defending Values of the Holy War -- which usually publishes books and films about the 1980-1988 Iran-Iraq war -- had posted the video "to symbolically show Iran's readiness to bury invaders of Iran's soil".
The United States and Israel have both said they do not rule out a military strike on Iran to prevent it getting a nuclear weapon, something the Islamic Republic says it is not seeking.
Iranian officials have stepped up their own rhetoric in recent weeks, threatening to close the Gulf to shipping -- something which would have a huge impact on the global oil market -- and strike Israel if attacked.