Fall of Reach

"We knew this day would come. They have found our fortress among the stars. The Covenant are on Reach. They will burn this planet, kill millions, and when Reach fails--and fail it will--there will be nothing left to stand between them - and Earth" Dr. Catherine Halsey 

The Fall of Reach, also known as the Battle of Reach, was one of the largest and bloodiest engagements of the Human-Covenant War. It was fought on and around the human colony world of Reach in the Epsilon Eridani system, between the United Nations Space Command and the Covenant from July 25 to August 30, 2552.