
A man stands on a makeshift bridge over a river while police stand on the opposite shore during a protest against the building of a pipeline on the Standing Rock Indian Reservation near Cannonball, North Dakota November 2, 2016. REUT

Police use pepper spray against water protectors who hold up make-shift shields while standing in the water of a river in front of Turtle Island during a protest against the building of a pipeline near the Standing Rock Indian Reservation near Cannonball, North Dakota, U.S. November 2, 2016. Water protectors say that Turtle Island is the burial ground of their elders and that the police presence desecrates this sacred place. REUTERS/Stephanie Keith

A woman holds a branch of cedar during a prayer ceremony on Backwater Bridge during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November

Police use a water cannon on water protectors near Backwater bridge during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 20, 2016. REUTERS/Stephanie Keith

Police tear gas water protectors near Backwater bridge during a protest against
plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 20, 2016. REUTERS/Stephanie
Keith

Police confront water protectors with a variety of guns including a rubber bullet gun and tear gas launcher near Backwater bridge during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 20, 2016. REUTERS/Stephanie Keith


Police use a water cannon on water protectors near Backwater bridge during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 20, 2016. REUTERS/Stephanie Keith

A protester holds up a mirror during a protest against the Dakota Access pipeline
to “show the police what they look like” near the Standing Rock Indian Reservation near Cannon Ball, North Dakota November 6, 2016. REUTERS/Stephanie Keith

Protesters block a highway during a protest in Mandan against plans to pass the
Dakota Access pipeline near the Standing Rock Indian Reservation, North Dakota, U.S. November 15, 2016. REUTERS/Stephanie Keith





Chenae Bullock from the Shinnecock tribe poses for a photograph during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 24, 2016. REUTERS/Stephanie Keith

A man named Black Horse holds his grandson during a protest against the Dakota Access pipeline near the Standing Rock Indian Reservation near Cannon Ball, North Dakota, U.S. November 13, 2016. REUTERS/Stephanie Keith

A man from the Lakota Sioux tribe with a Native American tattoo on his neck poses for a photograph in Oceti Sakowin camp during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 16, 2016.


A woman kneels in front of police during a protest against the Dakota Access pipeline near the Standing Rock Indian Reservation, in Bismarck, North Dakota, U.S. November 14, 2016. REUTERS/Stephanie Keith.

Protesters stand off with pilice during a protest in Mandan against plans to pass
the Dakota Access pipeline near the Standing Rock Indian Reservation, North Dakota, U.S. November 15, 2016. REUTERS/Stephanie Keith



Protesters block Route 6 in Mandan on Thanksgiving day during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, North Dakota, U.S. November 24, 2016. REUTERS/Stephanie Keith


Cheryl Angel speaks to other water protectors on Backwater Bridge in front of burned out trucks blocking the roadway during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 18, 2016. REUTERS/Stephanie Keith


A veteran holds up a traditional drum during a confrontation between veterans and police on Backwater Bridge during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S., December 1, 2016. REUTERS/Stephanie Keith


Cekpa Bald Eagle sits by a fire in the Oceti Sakowin camp during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 29, 2016. REUTERS/Stephanie Keith

A person walks a horse past the Oceti Sakowin camp in a snow storm during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 28, 2016. REUTERS/Stephanie Keith

Jason Pinto holds up his arm while water protectors block highway 1806 in
Mandan during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, North Dakota, U.S. November 23, 2016. REUTERS/Stephanie Keith