Every major population centre was hit, industrial sectors were reduced to ashes and planetary defenses proved to be futile against the Reapers' might. When they breached the Sol System, they swiftly devastated the Lunar colonies and began landing on Earth en masse. As they advanced into Alliance territory, the Reapers easily crippled human government by destroying Arcturus Station, where the Alliance Parliament was located. Their next primary target was the Human Systems Alliance homeworld Earth. With the Kite mass relay secured, the Reapers had easy access to many more systems.

However, the colonies only had so many ships to spare for each of their populations, leaving many more millions behind to wait for the Reapers' assault. Ships fleeing from the Hegemony's core systems managed to spread word to the colonies that the Reapers had invaded the Batarian homeworld of Khar'shan, prompting millions of Batarians across the colonies to evacuate. The Hegemony's comm-buoy network was swiftly disabled, preventing the Batarian systems from mounting any adequate defensive measures. The Batarians had made enemies of the various Citadel races and so had no allies to turn to as the machines stampeded through their space. The Reapers made their entry into the galaxy via the Kite's Nest, home cluster of the Batarian Hegemony. Events and battlefronts The Fall of Kar'shan

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