I am mainly interested in World War I from a European perspective, so I won’t comment much on this anniversary. But a great uncle of mine fought for the U.S. in France. My family knows little of his service, since he never talked about it.
Please see my posts from the anniversary of the assassination in Sarajevo and pics from the anniversary of the outbreak of war on my Gallery page. You might also be interested in my entry on the last emperor of Austria-Hungary, and how he might have brought an early end to the war.