[killjoy]

Finally woke up. What is all the black smoke they are showing?

[GOPyouth]

Is this oil set on fire??

[Green]

a defensive measure that the iraqi's have implemented..they've set oil trenches on fire...trying to obscure our views ha

[Cboldt]

It's an ancient battle tactic, intended to put fear in your enemy and deter them from crossing your line. Came just before bows and arrows, and about the same time as spears.