A Call to Arms

ACtA is set several hundred years before the Honor Harrington series. It is not a safe time. Shadowy and powerful forces have decided that the Manticore binary system has great value and plan to take it over by force. The chronically underfunded and understaffed Manticore space navy will find itself with its back to the wall and in a fight to the death.
Good military SF with a lot of intrigue and some interesting characters.