If you love military science fiction, then today is going to be a very good day. Chris Fox, Richard Fox, Scott Moon, Drew Avera, and Rick Partlow decided to do something fun and all discount their books at the same time. Here’s what they have to offer:

Destroyer
by Chris Fox
Mankind’s outer colonies are disappearing. Without warning. Without a trace. Fleet command chalks the attacks up to pirates, but Captain Dryker of the UFC Johnston isn’t buying it.
Defying command, he leads his misfit crew into hostile territory in search of answers. They encounter the mythical Void Wraith, an unstoppable legend whispered by the first race. After 26,000 years the Void Wraith have returned to begin the next Eradication. Their technology is superior, their motives unclear.
Humanity cannot stop them. Not without help. Captain Dryker’s only hope is to forge an alliance with mankind’s greatest enemy, the savage Tigris.
One maverick captain, an unlikely crew, and an aging vessel are all that stand between humanity and the Eradication.
 The Ember War
The Ember Warby Richard Fox
 Bayonet Dawn
Bayonet Dawnby Scott Moon
 Broken Worlds
Broken Worldsby Drew Avera
 Duty, Honor, Planet
Duty, Honor, Planetby Rick Partlow