Multiply that daily tab by 365 and you get 1.3 billion gallons: the estimated annual oil expenditure for U.S. combat operations in Southwest Asia. That's greater than the total annual oil usage of Bangladesh, population 150 million -- and yet it's a gross underestimate of the Pentagon's wartime consumption.
Such numbers cannot do full justice to the extraordinary gas-guzzling expense of the wars in Iraq and Afghanistan. After all, for every soldier stationed 'in theater,' there are two more in transit, in training, or otherwise in line for eventual deployment to the war zone -- soldiers who also consume enormous amounts of oil, even if less than their compatriots overseas. Moreover, to sustain an 'expeditionary' army located halfway around the world, the Department of Defense must move millions of tons of arms, ammunition, food, fuel, and equipment every year by plane or ship, consuming additional tanker-loads of petroleum. Add this to the tally and the Pentagon's war-related oil budget jumps appreciably, though exactly how much we have no real way of knowing.
And foreign wars, sad to say, account for but a small fraction of the Pentagon's total petroleum consumption. Possessing the world's largest fleet of modern aircraft, helicopters, ships, tanks, armored vehicles, and support systems -- virtually all powered by oil -- the Department of Defense (DoD) is, in fact, the world's leading consumer of petroleum. It can be difficult to obtain precise details on the DoD's daily oil hit, but an April 2007 report by a defense contractor, LMI Government Consulting, suggests that the Pentagon might consume as much as 340,000 barrels (14 million gallons) every day. This is greater than the total national consumption of Sweden or Switzerland."