One hundred years since the Battle of the Somme

About 43 years ago (that is 43% of the way back to the battle) I saw this image for the first time. I have never forgotten it. 

A little later I went by train to Paris and remember the thousands of white crosses flicking into lines... columns and rows and diagonals, as we sped past.

The man happens to be German, but you would need to know a bit about uniforms to tell, wouldn't you?

Don't forget.