The Galactic Crusade Trilogy

My name is Argo Herrero. I'm ready to enlist, sign the contract to serve for 10 years under the ally ranks. Enlisting is the only way to free myself from the hands of the totalitarians, to fight for freedom itself. The allies assure me citizenship and a decent salary after 10 years of service. The Megachine are strong. Undefeated. Unrivaled. They have wiped out the ally drone force and are moving in for the final blow. First they took Europe, then Asia. With the help of the Chavistas, they conquered Latin America.

After 10,000 years of war, humanity has obtained its wish - crusading the Milky Way. My name was Argo Herrero. I'm now Lynx, my code of war. Planetary system after planetary system, we've slain all intelligent species once alive in our galaxy. All but one, the last intelligent species left to be purged by our ranks. What will become of us when we've purged the whole galaxy? I don't know, but I'm afraid of what we'll become, of what I've already become.

We survived the destruction of our brothers in Canis Mayor, where both the Alpha and X Legions were laid to waste by Ahmurai. After my rescue by the special forces agent Captain Setzune and her android Rin, we have found a way to return to the Milky Way.