The people of future earth go back in time in order to recruit humans to fight against an alien invasion that threatens to extinguish humanity.
Category - Alien Invasion
Books that involve alien invasion
Invasion: Total War (The Invy War Book 3) by J. F. Holmes
Pros More palpable sense of loss than other military science fiction storiesPlenty of action continues as humanity struggles against the InvyExpanded story with AI and inclusion of uplifted species Cons Wide cast of...
Invasion: Day of Battle (The Invy War Book 2) by J. F. Holmes
The Confederated Earth Force launches its all-out surprise ground, air, and space attack on the Invy, and their failure or success will determine the fate of humanity.
Invasion: Resistance (The Invy War Book 1) by J. F. Holmes
Earth has been invaded and occupied by aliens collectively known as the Invy. Now, what's left of humanity learn to work together to overthrow its occupiers.
Fear the Sky (The Fear Saga Book 1) by Stephen Moss
An advanced alien species wants to wipe out humanity and take over the planet Earth for itself. To prepare for the invasion, the aliens send an advanced group of human-looking agents to infiltrate Earth governments and...
Earth Fleet (Rebel Fleet Book 4) by B. V. Larson
Admiral Fex exerts his power and control over weaker Rebel Kher, and Earth is once again under threat of invasion and control.
Alpha Fleet (Rebel Fleet Book 3) by B. V. Larson
General Vega, in charge of Earth's defense, sends Leo Blake to defend the planet against an invasion fleet coming out of rifts in space near Earth.
Armor World (Undying Mercenaries Book 11) by B. V. Larson
A giant moon-sized object made of compressed star material, is heading toward Earth, and James McGill and Legion Varus has to save the planet from this unknown invader.
Destroyer (Expansion Wars Book 3) by Joshua Dalzelle
Captain Jackson Wolfe in command of the latest destroyer Nemesis hunts the Darshik ace known as the Specter.