The militia occupation ongoing in Oregon is really about who gets to use public land: ranchers or you.

Here’s the story, in case you haven’t been tracking: Armed militia members calling themselves Citizens for Constitutional Freedom broke into a visitors’ center in the Malheur National Wildlife Refuge in rural Oregon on Saturday, where they plan to remain indefinitely. The group — who number between 15 and 150, depending on who you believe — are protesting the conviction and sentencing of two Oregon ranchers on charges of arson, as well as the fact that the federal government won’t let them do whatever they want on federal land.

The convicted ranchers, Dwight Hammond Jr. and his son Steven, were charged with setting a 2001 fire that consumed 139 acres of public land in Oregon. Prosecutors allege that the Hammonds were attempting to cover up evidence from an illegal deer hunt on federal property overseen by the Bureau of Land Management (BLM). “After committing the arson,” according to the Department of Justice, “Steven Hammond called the BLM office in Burns, Oregon and claimed the fire was started on Hammond property to burn off invasive species and had inadvertently burned onto public lands.” The jury didn’t buy the Hammonds’ story, and they were sentenced to five years in prison based on federal sentencing minimums, set to begin Jan. 5.

It was this sentence that inspired the militia occupation, but the bigger issue is a dispute over who has the right to use public land. Malheur National Wildlife Refuge was created in 1908 as a sanctuary for migrating birds and other species, but the Hammond family maintains that it has a right to graze its cattle there. In 1994, Dwight and Steven Hammond were arrested after interfering with officials building a fence to prevent the Hammonds’ cattle from wandering onto the refuge.

Though the Hammonds’ plight inspired the militiamen to converge on the refuge, the Hammonds’ attorney now says the militiamen do not represent the family. The armed group is led by Ammon and Randy Bundy, part of a notoriously anti-government clan of Nevada ranchers. In 2014, their father Cliven Bundy stood off against the BLM in an armed protest after his cattle were seized because of non-payment of over a million dollars in fees he owed the government for grazing his herd on public land. These fees have yet to be collected.