The Army of the Wookiee Trade Guild comprised Wookiees whose purpose was the protection of the Wookiee Trade Guild.
This army participated in the Kashyyyk Trade Rebellion, an event that occurred in 28 BBY as the Separatist Crisis began. The Trade Federation's battle droids, under the command of the Sith Lord Darth Tyranus, completely annihilated the army during an assault.