The Earth has been invaded, but the aliens (Gurus) are friendly and offer technological assistance and warnings of an impeding invasion by evil aliens (the Antags), who start the war against humanity on Mars.
The desolate planet is a battle-ground into which Master Sergeant Michael Venn is ejected, but the drop with his fellow marines and their supplies and weaponry goes wrong. Venn finds himself on the planet with little air or supplies, and just a few rag-tag remnants of his platoon.
Up until this point it’s kind of like a more military version of The Martian, it’s fun, it’s exciting, it’s desperate and kind of scary. But about half way through the novel Bear seems to lose the plot a bit, adds in more politics as some officers turn up, and a local human Martian who takes them to a shelter, where they are soon the target of the infamous Antags.
Then the book goes completely off the rails, adding in more politics, conspiracies and things that complicate the book no ends and serve only to distract from what could have been an excellent military adventure on the desperate wind-swept planet of Mars.
This is not the novel you are look for, if, like me, you wanted some action adventure military SF. Starts well, ends badly.
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