LUXEMBOURG VILLE, LUXEMBOURG—In an effort to quiet criticism of U.S. military policy, 50,000 U.S. troops invaded and soundly defeated the non-oil-rich Grand Duchy of Luxembourg Monday. "Once again, the U.S. claims victory over a rogue nation," said President Bush after the 45-minute war. "The people of Luxembourg, although prosperous and living in peace, have suffered under the tyranny of a monarchy for centuries. And allow me to point out that Luxembourg has not one drop of crude oil." Troops will return home Friday, following the public hanging of Grand Duke Henri de Luxembourg.