On June 14, 2012, Patrick Mooney delivered a Banner Lecture entitled "The U.S. Marines at Belleau Wood, June 1918." In 1917 the German Empire won its war on the Eastern Front by imposing humiliating terms on Russia. It then mounted a giant spring offensive on the Western Front in 1918 to crush the weakened Allied armies. U.S. Marines of the American Expeditionary Force helped blunt the German thrust and turn the tide. The pivotal action took place in June at the battle of Belleau Wood, the bloodiest fighting involving American troops since the Civil War. Patrick Mooney will describe this dramatic chapter in Marine Corps history and America's participation in World War I. Mr. Mooney is visitor services chief at the National Museum of the Marine Corps. (Introduction by Paul Levengood)