More than a hundred protesters came together in Washington, DC, and North Dakota recently to protest against the controversial Dakota Access Pipeline (DAPL).
The $3.7bn huge oil pipeline will cross four states in the western United States, including Iowa, Illinois, and North and South Dakotas.
Running 1,168 miles, the DAPL will carry around 570,000 barrels of crude oil per day.
A part of the project is planned under the Missouri River and locals of the nearby tribal areas, including the Standing Rock Sioux reservation, fear it would contaminate their waterways and land.
“Native communities are always just the first to be affected,” Joey Montoya, a protester told the Guardian. “We’re always at the front lines when oil companies come in.”
Valentine Little Shield, a member of the Cheyenne River Sioux tribe in South Dakota, traveled to Washington to express solidarity with the Standing Rock tribe.
"I'm here because of my grandkids and what they're going to go through," she told BBC. "They can't drink the oil, they can't take a bath in the oil."
This is the first time all Sioux groups have come together since the Great Sioux War of 1876 to protest anything, according to Jon Eagle Sr, the Tribal Historic Preservation Officer at the Standing Rock Reservation.
For now, the construction has been stopped. The Standing Rock Sioux tribe has filed a request for an injunction to block the project for good.
U.S. District Judge James Boasberg is expected to make a decision on the issue by Sept.9.