To Hell and Regroup

THE FINAL SHOWDOWN ON TROY!
The strange bird-like aliens that humans have nicknamed "Dusters" have destroyed a human colony, the Semi-Autonomous World Troy. The North American Union sent a massive force of troops from the Marines, Army, and Navy in response.
In orbit, the remnants of the Navy must pull together and fight off the latest wave of Duster reinforcements to come through the wormhole and press their attack.
On the ground, Marines are locked in pitched combat with the Dusters, who continue to press their advantage, now with a weapon of devastating power, mounted on a large tank-like vehicle.
At headquarters, the Army Corps of Engineers must figure out how those tanks work and figure out how to either stop them-or use them!
And back on Earth, the NAU President must decide humanities next course of action, even as scientists try to discover the Dusters' secrets to help the soldiers, sailors, and Marines win-
-and time is running out!

David Sherman is the author or co-author of some three dozen books, most of which are about Marines in combat.
He has written about US Marines in Vietnam (the Night Fighters series and three other novels), and the DemonTech series about Marines in a fantasy world. The 18th Race trilogy is military science fiction.
Other than military, he wrote a non-conventional vampire novel, The Hunt, and a mystery, Dead Man's Chest. He has also released a collection of short fiction and non-fiction from early in his writing career, Sherman's Shorts; the Beginnings.
With Dan Cragg he wrote the popular Starfist series and its spin off series, Starfist: Force Recon-all about Marines in the Twenty-fifth Century.; and a Star Wars novel, Jedi Trial.
His books have been translated into Czech, Polish, German, and Japanese.
After going to war as a U.S. Marine infantryman, and spending decades writing about young men at war, he's burnt out on the subject and has finally come home. Today he's writing short fiction, mostly steampunk and farcical fantastic Westerns.
He lives in sunny South Florida, where he doesn't have to worry about hypothermia or snow-shoveling-induced heart attacks. He invites readers to visit his website, novelier.com.