While U.S. military operations in the 21st century have largely been spared the nefarious results of “eclipses of the sun,” the central point of Thucydides’ account of a war that happened more than 2,000 years ago still holds: war is a calamity. War consumes money and natural resources and it destroys lives and land. There is nothing environmentally friendly about combat. That core truth is largely absent from Sarah Light’s otherwise thoughtful article, The Military-Environmental Complex.