The Dallas-based oil and gas company Energy Transfer—whose executive chairman Warren Kelcy is a donor to U.S President Donald Trump, according to the The Guardian—has accused Greenpeace and other activists of inciting protests that took place against the Dakota Access Pipeline in 2016 and 2017, as well as spreading misinformation about and vandalizing the project.

The lawsuit names Greenpeace International and two U.S. Greenpeace entities. Greenpeace maintains that the protests were directed by Indigenous leaders, not Greenpeace.

The Standing Rock Sioux tribe and its allies said the pipeline, which has been in operation since 2017 and carries crude oil from the Brakken oil fields in North Dakota to Illinois, would endanger the water supply for the reservation and violate the tribe’s right to its land.

If successful, the $300 million lawsuit could inflict “financial ruin” on the group, according to Greenpeace. This would have a chilling effect on the organization’s work, but leaders within the group have also cast it as an attack on the environmental movement and free speech more broadly.

“This fight is bigger than Greenpeace. This lawsuit is a blatant attempt to silence critics and hide destructive practices,” said Rolf Skar, the campaign director of Greenpeace USA, in a Tuesday statement.

Of the projections in D.C. and Dallas, Skar said they “are a testament to that resilience, shining a light on the truth and reminding everyone fighting for a just and livable future that we will not back down.”

In a similar vein, Deepa Padmanabha, Greenpeace’s deputy general counsel, toldThe Guardian that “Energy Transfer and the fossil fuel industry do not understand the difference between entities and movements. You can’t bankrupt the movement. You can’t silence the movement. There will be a backlash and a price to pay when you pursue these kinds of tactics.”

“People power is more powerful,” she added.

The case has also been decried as an example of what are known as “Strategic Lawsuits Against Public Participation”—or “SLAPP” lawsuits, meritless cases whose goal it to bankrupt civil society groups and nonprofits with years of litigation and legal fees.

Greenpeace International, which is based in Amsterdam, has been the first group to initiate a lawsuit under the European Union’s new anti-SLAPP directive. The group has sued in a Dutch court to recoup losses it has incurred as a result of its legal fight with Energy Transfer.

Of its bid under the anti-SLAPP directive, Daniel Simons, senior legal counsel at Greenpeace International, said in early February that “if we prevail, it will send a message to corporate bullies that the age of impunity is ending. That would be a boost for civil society in the E.U., and point to solutions for those battling the SLAPP phenomenon elsewhere.”

There is no federal anti-SLAPP law on the books in the United States.

There has also been intrigue surrounding the circumstances of the upcoming trial in North Dakota. Greenpeace unsuccessfully sought to have the case moved to a different court over concerns of potential jury bias. The Guardian and the local outlet the North Dakota Monitor have reported on mysterious mailers that were sent to local residents that contain written material slanted against Dakota Access Pipeline protestors and in favor of Energy Transfer.