Chief Arvol Looking Horse greeting 12 different tribes arriving on cedar canoes on Cannon Ball River to support Standing Rock Sioux resistance.
The Standing Rock Sioux tribe has opposed the Dakota Access Pipeline since first learning about plans for the pipeline in 2014. But its only been in recent months that the issue has gained national attention, as thousands of Water Protectors have gathered in North Dakota in an attempt to block the 1,200-mile project.