Several months before the end of the Hundred Year War, the Gan Jin leader hoped to cross the Great Divide with his tribe. A tribesman had "reserved" an expedition across the canyon with the canyon guide, but the Gan Jin's rival group, the Zhangs, appeared, also hoping to cross the massive valley. When the rest of the Gan Jins arrived, it was decided by Avatar Aang that the two would cross the Great Divide together. The canyon guide did, however, order the groups to dispose of any food before beginning the journey.