Zero Hour (Expeditionary Force Book 5)
Craig Alanson
Expeditionary Force (5)
Black Ops (Expeditionary Force Book 4)
Expeditionary Force (4)
Trouble on Paradise
Expeditionary Force (3.50)
Paradise (Expeditionary Force Book 3)
Expeditionary Force (3)
SpecOps
Expeditionary Force (2)
Columbus Day
Expeditionary Force (1)