Historical:

"Operation Iraqi Freedom" took place from March 20 - May 1 2003 involving approximately 390,000 troops from the U.S., United Kingdom, Australia, Poland and Peshmerga forces. This many troops meant a need for a continuous supply of fuel, munitions, food and other materiel. Reminiscent of the WWII Red Ball Express hundreds of trucks were used to keep the constant re-supply moving. Eventually the threat of attack by RPGs and IEDs became so prevalent that more and more C-130 aircraft were used instead to carry out these types of missions.

Info: M35 2.5 Ton Truck US Army, Bahgdad, Iraq, Operation Iraqi Freedom