Who said "In unity, there is strength that no enemy can break."?

This quote is attributed to Sitting Bull.

In unity, there is strength that no enemy can break. - Sitting Bull

"In unity, there is strength that no enemy can break."

Sitting Bull Friendship

Military Chief Native American 1831–1890

"Beware of the man who does not talk, and smiles."

"I would like to die, but there is no day set for my death."

"A warrior's heart knows no fear."

"Let us put our minds together and see what life we can create for our children."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."