information:extraction
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Other evidence demonstrates that these events did not cause a complete Moche demise. Moche polities survived beyond 650 AD in the Jequetepeque Valley and the Moche Valleys. For instance, in the Jequetepeque Valley, later settlements are characterized by fortifications and defensive works. While there is no evidence of a foreign invasion (i.e. a Huari invasion) as many scholars have suggested in the past, the defensive works suggest social unrest, possibly the result of climatic changes, as factions fought for control over increasingly scarce resources.