This fifth (really? I think so) entry in the Vatta's war series wraps it up. There's a big climactic battle at Nexus in which Mackensee, Slotter Key and the newly formed Space Force (IIRC) collectively do what needs to be done. But long before that, Rafe and his sister Penny have to wade thru further corruption and incompetence on Nexus to get the government to actually start behaving reasonably. Ky has to track the pirates to their lair and then onto Nexus, after a battle to keep them from taking delivery of a bunch of newly minted warships.
I think the weakest bit in the book is where Vanguard gets a special module installed to make it Ky's flagship: ansible, repeater screens --- CCC stuff. You just know, as that sucker is described, that Vanguard and whoever is on it and not in the CCC is toast as soon as that puppy is installed. Poor Gannetts. Poor Hugh. Poor Martin -- he deserved better.
Don't try to read this without having read some or all of the previous entries in the series -- I cannot imagine this puppy making much sense on its own. But it does wrap everything up nicely.