The Grand Alliance and New Horde joined forces to lay siege to Orgrimmar following Garrosh Hellscream's brutal subjugation of the city. After landing at Northwatch Hold, the regiment proceeded into Durotar where it joined the invasion forces in breaking through Garrosh's defenses and deposing the warlord over the course of a month. The regiment then stood as honor guard for the grand trial of the Garrosh Loyalists captured during the siege.

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