lest we forget:
nits make lice.
chivington
The Sand Creek Massacre is remembered, out of the many hundreds of battles with the Indians, because US troops indulged in atrocities to a degree roughly comparable to the normal practices of "the merciless Indian Savages, whose known rule of warfare, is an undistinguished destruction of all ages, sexes and conditions." To quote the Declaration of Independence.
IOW, at Sand Creek the Army did what (most of) the Indians always did. Actually less than, since even Chivington didn't haul away prisoners for later leisurely torture.
Among the items found at at this peaceful Indian village at Sand creek were..Scalps of white men and boys so fresh they had not been stretched on hoops or tanned, a blanket fringed with the hair of white women...
Peaceful Indians indeed.