Sunday's weekly vigil at Y-12 National Security Complex included people from all across the country.
The federal trial against three anti-nuclear weapons activists, charged with destroying property and trespassing at Y-12 National Security Complex, starts this week.
Supporters from all across the country traveled to Knoxville for the trial.
Sunday night they gathered outside of Y-12 for their weekly vigil.
Last July Michael Walli, 64, Greg Boertje-Obed, 57, and Sister Megan Rice, an 82-year-old nun, cut through fences at Y-12 and vandalized the Highly Enriched Uranium Materials Facility.
They could each face more than 20 years in prison.
"We hope that we will be allowed to speak some of the truth of why we did it and why the work here [Y-12] is wrong. We hope the judge and prosecutor will understand that," said Boertje-Obed of Duluth, MN.
The group, Transform Now Plowshares, said they are led by their faith in God.
"None of the three of us invented God's purposes. Jesus said, 'I have come into the world to do the will of God, the father who sent me.' Essentially we're not inventing any new ideas here," Walli said.
The trio joined supporters at Sunday's vigil.
Many of them said they plan on staying for the duration of the trial.
Jury selection is scheduled to start on Monday at 1:30 p.m.