Because of the uneven Canyon, we can't see the surrounding roads at all. In order to avoid ambush, Vijaya led his troops to walk closely against the cliff, so that they had only one side to guard against

no surprise. The cliff is the broken wall of Tiangang mountain. It's hundreds of feet high. It's impossible for anyone to ambush it

there are many crises in the Tiangang mountain range. There are also various kinds of animals and poisonous insects. Even the mastiff and lion battle group dare not enter the Tiangang mountain easily. It can be said that unless they want to commit suicide, no general will send troops...