From the beginning, the Standing Rock Sioux tribe and its supporters have claimed the pipeline poses a threat to their water supply.
The Standing Rock reservation sits on the Missouri River, a tributary of the Missouri that provides water to much of North Dakota and parts of South Dakota.
This is the longest tributaries of the Great Plains.
This, and the fact that the pipeline runs under the Missouri, have sparked an international outcry.
It has also led to a series of protests, which have been largely peaceful, and culminated in a January 18 decision by the US Army Corps of Engineers to temporarily halt construction.
But in a decision released Friday, a federal judge ruled that the tribe must now file an application to have the pipeline completed.
The decision could lead to a showdown with the federal government, which has threatened to sue to block the project.
Standing Rock, which is in the midst of a decades-long fight against the Dakota Pipeline, says it will appeal the decision to the Supreme Court.
What does it mean?
A lawsuit filed by the tribe in April 2017 accused the Corps of violating the National Environmental Policy Act, or NEPA.
The tribe claims the pipeline’s route crosses the Missouri and its tributies, and could cause water contamination.
The pipeline, which would run along the Standing River for several miles, crosses the Standing Plains.
But the tribe also says the route is navigable and would allow for safe and environmentally sound development.
How will the pipeline affect me?
If the pipeline goes ahead, it would bring with it dangerous levels of oil and gas development.
The company said it would be the biggest energy project ever undertaken in the United States.
The Dakota Access Pipeline would carry oil from North Dakota to Illinois and Indiana.
The route is a key part of the pipeline that would pass through the Standing Sioux reservation and connect to an existing oil pipeline that crosses the U.S.-Mexico border.
It would also pass through sacred sites, including burial grounds for many of the tribe’s ancestors, the tribe said.
The Tribe has said the pipeline will help secure its water supply for generations to come.
Why is the US government threatening to sue the tribe?
In May 2017, the U,S.
Army Corps said it had determined the pipeline would cause no damage to the environment or the public.
But, in a series.
lawsuits filed last year, the agency said the route would pose “significant threats to the water supply and safety of the entire tribe.”
The company has said that it would not seek to block construction of the pipelines, but would only make necessary repairs.
What are the legal arguments in the pipeline lawsuit?
The pipeline would cross under the Standing Sandstone Reservation, which sits on about a third of the state’s land.
The reservation is home to the Standing Stone Camp, a sacred site that is revered by many Native Americans.
It is also home to burial grounds that were built for the Sioux, the Corps said.
“The pipeline would pass beneath sacred burial sites, a place of intense religious and cultural significance to the Sioux,” the tribe argued.
“This is not an easement, but an easterfly.”
Why is it important?
The tribe argues that the path is not necessary for construction, because it would connect with existing pipeline infrastructure.
The US Army’s lawsuit also cites a pipeline easement in Nebraska that would have allowed the company to construct a line that crosses a portion of the Standing Creek.
It also says that pipeline infrastructure that would cross the Missouri would not affect the Standing Stones burial grounds.
The lawsuit seeks to block all construction of pipelines through tribal lands, the Army Corps wrote.
Why are other tribes suing the Dakota pipeline?
There are many tribes that oppose the pipeline.
The largest tribe in the Dakotas is the Cheyenne River Sioux, which was the original state of South Dakotans for thousands of years.
In 2016, a group of tribal members formed the Sioux Tribe Against Pipelines, or SWAP, which argued that the Standing Water Tribe has a legal claim to the Missouri.
The group also has said in a recent lawsuit that pipeline companies have “unprecedented and reckless” disregard for human and ecological health.
The U.N. has called the pipeline “a major threat to water supplies for millions of people in North and South Dakota.”
What are some of the other groups that have sued over the pipeline?
The Native American Environmental Network has sued to stop construction of Dakota Access.
The tribes of the Blackfoot and Chippewa, along with the Ute Tribe of Oklahoma, have also filed lawsuits.