Actually the Indian war intensified after Sand Creek. He made the situation much worse.
He killed relatively few warriors, mostly women and children. The men were understandably pissed off by his actions.
Don’t believe me. Look up the official report by Congress, which investigated the massacre and recommended criminal prosecution for his actions.
***Actually the Indian war intensified after Sand Creek. He made the situation much worse.****
How did it make the situation worse? Every warrior was required each year to “prove his worth” to the tribe and enhance his tribal status by killing, scalping, stealing from their “enemies or preceived enemies like settlers. So even if Chivington had not dished it out at Sand Creek as the Indians had been doing, the Indians would have still went on the warpath the next year as they always did, peace treaty or no peace treaty. It was built into their social structure.