The Great Lakes Campaign (UN designate: Operation SABLE), known alternatively as the Battle of the Great Lakes or to Imperial forces as the Assault of Misled Victory, was a major conflict that took place during the closing stages of the horrendous First Great War.
Pitting the invading Imperial forces against the defending United Nations Space Command, the conflict lasted for nearly two months (late October through late December, 2552). It cost the lives of nearly five hundred individuals, making it the third bloodiest theater of the Battle of Earth. While local defensive forces were successful in repelling the Covenant force, they paid a terrible price: UNSC forces in the western hemisphere had been pushed beyond their limits, which led to the horrific losses in southern Central America in early January.
Order of Battle
U-445 (Harbinger of Piety) glassing the waterfront city of Sandusky.