China is capable of crippling the American military industry without firing a single shot. AS MANY AS 78 PERCENT OF AMERICAN WEAPON SYSTEMS ARE "POTENTIALLY VULNERABLE." More than 80,000 components used in 1,900 American weapon systems contain minerals in whose production China dominates. Nearly four out of five American weapon systems rely on materials controlled by the country that they might potentially one day be at war with. These five elements are: antimony, gallium, germanium, tungsten, and tellurium. The U.S. Navy has approximately 91-92% (before China) of its weapon systems unprotected – including Arleigh Burke-class destroyers, Nimitz-class aircraft carriers, and America-class amphibious assault ships.