War World period of Jerry Pournelle's CoDominium future history.
SM Stirling has specialized in alternative histories and has also contributed to the CoDominium history which covers:
First Contact (two novels co-written with Larry Niven).
Thus, The Prince by Pournelle and Stirling looks like a good prospect to read after my current rereading of Anderson's For Love And Glory, which, however, will continue for some time.
I think that I have read Anderson's War World story, "The Deserter," somewhere but do not think that it is in any of his own collections. Any information on this would be appreciated.