Great War Index
http://www.dean.usma.edu/history/web03/atlases/great%20war/great%20war%20index.htm
dean.usma.edu - Atlas with maps of sites integral to the Great War.
http://www.dean.usma.edu/history/web03/atlases/great%20war/great%20war%20index.htm
dean.usma.edu - Atlas with maps of sites integral to the Great War.