Sometimes, to see the big picture you need to focus on the smallest part of it, as Nick Turse does in the latest of his dispatches on the U.S. military in Africa.  He takes a look at that military in Chad.  Yep, I said "in Chad." At least 99% of Americans are undoubtedly unfamiliar with that landlocked African country and most of the remaining 1% have no idea that the U.S. military is already deeply involved in that (if you don't happen to be Chadian) obscure land....