Legacy Fleet: Vengeance (Kindle Worlds)

Captain Granger and the crew of the Warrior are called to defend the Johannesburg Sector after the Swarm attack on earth, which is devastated by the merciless aggressors, but who also leave something behind—something that will be crucial for victory.
President Avery is surrounded by those bent on her assassination. And amidst the chaos and violence resounds a universal cry from United Earth and its colonies: a cry for vengeance.

"It has the nonstop action of a summer blockbuster."- Nick Webb