Courthiezy, France, July 15, 1918

Among the 17 National Guard divisions assigned to the American Expeditionary Force during World War I was the 28th Division, Pennsylvania National Guard. The 28th received its baptism of fire on July 15, 1918, during the German Army's Champagne-Marne Offensive. Four companies from the 28th were attached to a French division on the front line, while the rest of the division took up second-line defensive positions. Two of the companies, L and M, were from the 109th Infantry Regiment made up of the old 1st and 13th Pennsylvania Regiments. In the early hours of July 15, the German 36th Division crossed the Marne River and attacked the Allied front. When the adjacent French units fell back, L and M Companies were surrounded. Wave after wave of Germans attacked the Pennsylvanians. By Don Troiani, National Guard Series