I've been following a weird reading trajectory lately. Apparently, my need for escapism was a lot bigger than I expected, so I've been loading up on the sub-genre "military science fiction." Heeding Sturgeon's Law ("90% of everything is crap"), I've been careful to follow other people's recommendations. Thank the gods for the Internet. Sure, you can waste a lot of time on the Web, but other people can help you save a lot of time--such as time spent finding out what's really crap, and what's worth reading.
Since military SF is where my head has been lately, I thought I'd share some recommendations. Some are recent acquisitions; others are books that I read a long time ago. I'm not going to give you a mini-review of each book, but I will add a little information that might pinpoint something worth reading.
TOP PICKS
John Scalzi, the "Resurrected" series. A shotgun packed full of neat ideas. I won't give anything away--just read them.
Robert Heinlein, Starship Troopers. One of the most misunderstood books ever. No, it's not a fascist tract, as some critics claim. Instead, it's a long musing on the meaning and importance of citizenship that's completely different, and better, than the silly movie "inspired" by the book.
Steakley, Armor. If Heinlein had dropped the political parable to focus more on the plot for its own sake, and if he had been a somewhat better writer, you'd end up with something like Armor. Same motif (ground-pounders versus aliens), different reasons for reading (a better escapist read).
David Feintuch, the "Hope" series. Very Hornblower-esque, in that the main character starts as a midshipman in a very Royal Navy-like setting. The characters and writing were good, and the situations stayed interesting until the last book or two, when the series lost steam.
Hook, the Human/Zor series. At first, I thought it would be another Hornblower retread. However, it turned into a weird but effective melange of space opera and alien mythology (!).
Joe Haldeman, The Forever War. Even if the author intended it to be a Vietnam metaphor, it doesn't quite read that way. On its own merits, it's a great book about soldiers getting more and more disconnected from the people they're defending.
Orson Scott Card, Ender's Game. I never liked the sequels, but the original is still a must-read book.
Frank Herbert, Dune. Of course it's a military SF book! Jihad, anyone?
WORTH READING
Walter Jon Williams, the "Empire's Fall" trilogy. Surprisingly prosaic space opera from one of the most imaginative writers around. Still worth reading, however, for the entertainment value.
Larry Niven and Jerry Pournelle, The Mote In God's Eye. A good novel about humans facing a potential alien enemy whom they really don't understand. Skip the excruciating sequel.
Various writers, the Man/Kzin wars collections. Several SF authors contributed to this series of short stories, all based on Larry Niven's "Known Space" setting, specifically on the bitter war between humans and the Kzinti.
Keith Laumer, the Bolo stories. If you put artificial intelligences inside heavily-armed robo-tanks, you know there's going to be trouble.
EH, MAYBE NOT
Campbell, the "Lost Fleet" series. I've read two of these recently. They're OK, but for "naval SF," the battles are surprisingly weak. Lots of scenes about how the hero is just plain amazing, even though he's amazingly humble. Too many borrowed ideas and motifs (fleet on the run remind you of anything?).
David Weber, the Honor Harrington series. The first couple of books were OK, but then they collapsed into tedious narratives, flat characters, and uninteresting political rants. Other people like 'em, but I just can't get into them.
HAVEN'T READ YET, SO CAN'T RECOMMEND
David Drake. I have one of the new collected Hammer's Slammers volumes on my shelf, begging for attention.
Lois McMaster Bujold, the Vorkosigan series. I read one of these volumes too long ago to remember the details, so it's almost as if I never read it at all!

Drake's pretty damned good, read in any sort of order. I've come to appreciate Bujold, but that was only after I started at the beginning of the series and worked forward, absorbing the context as I I went.
Let me recommend Elizabeth Moon BTW. She's done two SF series with female protagonists, very intelligently handled.
Posted by: ming the more-or-less | 02/27/2008 at 12:51
I would second the recommendation for Elizabeth Moon. Also C.J. Cherryh: the Cyteen trilogy (two Hugo awards) and Downbelow Station. Jerry Pournelle's Janissaries books and the Falkenberg series are also worth a read.
Posted by: Ryan | 02/27/2008 at 13:48
Yes! Finally, another fan of Armor. I lucked upon this book in high school. It was at the bottom of a stack that the library was getting rid of. It's been awhile and I think it is time I blow the dust off and pull it off the shelf for another read.
Posted by: Matt | 02/27/2008 at 14:24
Very surprised that you haven't read the Hammer's Slammer's series prior to this. They are excellent, very good reading and prescient (is that the right word?) of today's defense acquistion efforts. I'll check out the Resurrected series, not familiar with those.
Posted by: J. | 02/28/2008 at 06:02
Be warned: Bujold is great, and I'm a fan, but it's not traditional milSF at all. In fact, she describes only one pitched battle in the entire series, and (IMO) she doesn't actually do it very well.
There's lots about military culture and military people, and her small-scale fights are very well described - but, in general, the big conflicts happen off stage.
"Forever Peace" isn't in the same universe as "The Forever War" but it's also Haldeman and also very good.
I should also recommend Iain M Banks: "Use of Weapons", "Consider Phlebas", and "Excession" are all worth reading.
Posted by: ajay | 02/28/2008 at 07:07
Tor has made Scalzi's Old Man's War available as a free Acrobat (pdf) file. Just sign up for the newsletter.
Posted by: Mikey in Plano | 02/28/2008 at 07:33
If you didn't like the Ender's Game sequels, did you try the Shadow Series, which follows Ender's friends from Battle School as they mess with geopolitics on Earth after he heads off? Much more similar to the original book and more interesting from a military strategy perspective. Card also has a new book out called "Empire" which is set in post-9/11 America.
Posted by: Diodotus | 02/28/2008 at 09:57
I read the first few pages of 'Empire'. It's a right-wing stroke book. The Freudian projection is so strong that the book should be used in a psych class.
Posted by: Barry | 02/28/2008 at 10:13
Hmm...why not Iain Banks? Use of Weapons, say, or Look to Windward, or Consider Phelbas?
Posted by: Sock Puppet of the Great Satan | 02/28/2008 at 11:00
Damn---ajay beatme to it with the Banks recommendations. Wouldn't have thought of "Excession" as being that military, but it is a great book, as is his non-Culture novel Feersum Endjinn. Try his non-SF offerings (Wasp Factory, Crow Rod) also.
Posted by: Sock Puppet of the Great Satan | 02/28/2008 at 11:02
What is 'Hook, the Human/Zor series'? I can't find any references to this anywhere, thanks!
Posted by: Roland Dobbins | 02/28/2008 at 23:01
Dickson. Tactics of Mistake.
Posted by: John Robb | 02/29/2008 at 03:35
Not a fan of Cherryh, eh? I like her tremenoudsly, but she has trouble ending a story. I figured her sociological and tough liberal bent would appeal to you.
Posted by: Jenda | 03/03/2008 at 20:35