The photo includes officers of several nations: Soviet, French, British, Dutch, Spanish, Lithuanian & US. So I thought that the picture shows a group military attaché watching a parade or something. Question is were? Life says the photographer is Heinrich Hoffmann and I thought that the British officer in front looks like Noel Mason-MacFarlane, the British military atatché to Germany prior to the War. So I made a search on Mason in the Hoffmann Bildarchiv at the Bavarian State Library and here we are:http://elektra.bsb-muenchen.de/jsp/fram ... timeout=10
The photo is taken in Berlin on Hitler's birthday on the 20th April 1939.
This means that the French officer most like is Henri-Antoine Didelet, and looking at the photo of Didelet as this page http://ecole-superieure-de-guerre.fr/pr ... aphie/2983
I am convinced that it is him.