Honor of the Queen.

This is the second book in the Honor Harington series, a large and growing collection of classic space opera style written by someone very well versed in military history and tactics. Webber's writing style and level of detail provide a compelling and almost unstoppable urge to read the whole thing through in one sitting, or at least from the middle onward, after he has made his introductions and located his story in whatever new place and time Honor finds herself.