It's a Trek book, it can't be that military.
No more military than Season 3 of Enterprise
when this novel is set anyway. I haven't read it since it was published, but I remember feeling uncomfortable with some of Archer's actions in the novel. But again, not out of place with his other actions throughout.
Currently reading: Typhon Pact: Paths of Disharmony by Dayton Ward
Next up: The Fall: A Ceremony of Losses by David Mack