Books like Rules of Engagement

Rules of Engagement is the sequel to Once a Hero (1997), and shares some supporting characters with the Heris Serrano trilogy (1993-95). It's reasonably self-contained, though you'll enjoy it more if you've read some of the preceding books, all of which I've liked.Esmay Suiza is a likeably nerdy young officer. Her heroic exploits overshadow her difficult childhood, her love life is terrible, she's had a bad-hair *life*... When Brun, rich, spoiled and beautiful, breezes into her life with hairdressing tips, and then goes after Esmay's secret beau... Well!Reviewer Christina Schulman once commented that "these confident, decisive people behave like insecure teenagers when they're thrown together at Command School..." Ah, but I think that was precisely Moon's point -- Cupid's tardy arrow will turn someone like Esmay, a seriously repressed over-achiever, into instant mush. Ms. Moon and I were classmates at Rice in the mid-60s (though I don't think we ever met), and I'm willing to bet she was another earnest, nerdy, bad hair, socially-awkward, sexually-repressed... oh god, it's excruciating just to think about those times!Anyway, Moon's delightfully Wodehousian aunts-in-space arrive just in time to save Esmay's butt (and career), and young love prevails. As usual, Moon's fast-&-furious action, meticulous military-medical backgrounding, and formidable storytelling skills carry the day.Rules of Engagement is Ms. Moon's fifth book set in her Familias Regnant universe -- an implausible interstellar constitutional aristocracy with corruption/kleptocracy/rejuvenation problems -- is threatened by, e.g., the Bloodhorde barbs-in-space (Once a Hero) and the NuTexas God-fearing Militia (Rules of Engagement). This background was light entertainment for the Heris Serrano books, but Moon seemed to have had somewhat deeper intentions for the Esmay Suiza books, and the backstory creaks ominously under the load. After this Obligatory Critical Carp, I should note that she is just carrying on an historic space-opera convention, and the scratchy backstory will interfere little (if at all) with your reading pleasure. My 1999 review: https://www.sfsite.com/04b/rule55.htm