What a shock to toss Reginald Badger's name into a late-night google search, and discover that someone is looking for information on him - in the last 10 days. A very odd coincidence.
He was a remarkable man who was my step-gran's first husband. They were married in 1923, and he died in about 1957. I am curious as to what has prompted your interest. If there is any way of getting in direct contact rather than discussions via this site, that might be preferable.
Regarding his decoration, I never heard about any connection to West Africa, so I suspect that one of the other commenter's explanations is correct.
Thanks for your post. He would be quite amazed to find that 100 years after he was wounded, he was being discussed on this thing even more extraordinary that the wireless!