This annual best-of-the-year anthology focuses on the themes of publisher Baen's novels and other anthologies: space opera, adventure stories, and military SF. The editor's prefaces introduce each book's stories. Volume 1 has a longer essay by David Drake, reviewing the history of significant stories and novels on these themes, while David Weber has essays in Volumes 2 and 3 exploring the nature of military SF. The series' scope expanded slightly with the second volume, as indicated by the title change.
Most-reprinted authors: William Ledbetter, Brad R. Torgersen, and Michael A. Williamson (3 each).
The Year's Best Military SF & Space Opera, David Afsharirad, ed. (Baen, 2015)
[isfdb]
The Year's Best Military & Adventure SF 2015, (Baen, 2016)
[isfdb]
The Year's Best Military & Adventure SF: Volume 3, (Baen, 2017)
[isfdb]
The Year's Best Military & Adventure SF: Volume 4, (Baen, 2018)
[isfdb]
The Year's Best Military & Adventure SF: Volume 5, (Baen, 2019)
[isfdb]