China’s recent ban on rare mineral exports to the U.S. is the latest warning sign the U.S. military could be left without the necessary tools to deter or defeat adversaries if the domestic supply chain isn’t shored up, Rep. Raja Krishnamoorthi (D-IL) argued during a House panel Thursday. The Chinese Commerce Ministry announced Tuesday it was banning the export of gallium, germanium and antimony -- three minerals possessing a wide array of military applications -- to the United States. “Gallium...