Battle of Earth (Reach)

The Battle of Earth (24 June - 9 July 2127) was an engagement between the allied human forces and elements of the invading Felesic fleet, occurring worldwide, but heavily concentrated in Europe and North America, as well as isolated parts of China and Australia. The battle was part of a larger coordinated invasion by extrasolar forces.

Marked by an extensive use of weapons of mass destruction, be they nuclear or biochemical, this conflict is regarded as one of the deadliest battles in human history, resulting in the death of nearly five billion humans, of which two hundred million military personnel. The battle left Earth in a ravaged state, forcing the various human governments to come together to resolve the subsequent issues.

The battle ended in a pyrrhic human victory, with all extraterrestrial fleets either crashed or completely destroyed. Prior to their destruction at human hands, the fleet was able to send data back to the mother fleet, which presumably included information about human anatomy, as well as military formations and weak points. Nearly seven years later, the entire fleet entered the Solar system, bringing about another, far more severe invasion.