Stones Throw have just released an interesting set/series via their Now Again Label.
Looking at it HERE it is a fine example of how re releases ought to be done, it's well presented with lots of interesting back ground information. It is completely obscure of course.
They also let you have a free taster track.
"Now-Again Records is proud to present , three complete albums from the winners of the US Army's . Consisting of nearly two hours of heavy funk and soul music from the United States Army soldiers enlisted in the 70's"