APATZINGAN, Mexico (AP) — Mexico's government plans on Saturday to begin demobilizing a vigilante movement of assault rifle-wielding ranchers and farmers that formed in the western state of Michoacan and succeeded in largely expelling the Knights Templar cartel when state and local authorities couldn't.

The ceremony in the town of Tepalcatepec, where the movement began in February 2013, will involve the registration of thousands of guns by the federal government and an agreement that the so-called "self-defense" groups will either join a new official rural police force or return to their normal lives and acts as voluntary reserves when called on.

The government will go town by town to organize and recruit the new rural forces.

"This is a process of giving legal standing to the self-defense forces," said vigilante leader Estanislao Beltran.

But tension remained on Friday in the coastal part of the state outside the port of Lazaro Cardenas, where other "self-defense" groups plan to continue as they are, defending their territory without registering their arms. Vigilantes against the demobilization have set up roadblocks in the coastal town of Caleta.

"We don't want them to come, we don't recognize them," vigilante Melquir Sauceda said of the government and the new rural police forces. "Here we can maintain our own security. We don't need anyone bringing it from outside."

With Saturday's ceremony, a federal commissioner now in charge of the violence-plagued state hopes to end the "wild west" chapter of the movement, in which civilians built roadblocks and battled cartel members for towns in the rich farming area called the "Tierra Caliente," or "Hot Land."

The new rural forces are designed to be a way out of an embarrassing situation, in which elected leaders and law enforcement agencies lost control of the entire state to the pseudo-religious Knights Templar drug cartel. Efforts to retake control with federal police and military failed. Eventually government forces had to rely on the vigilantes because of their knowledge of where to find the cartel gunmen.

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Since the commissioner, Alfredo Castillo, was named in January, federal forces have arrested or killed three of the main leaders of the Knights Templar. The fourth, Servando "La Tuta" Gomez, is in hiding and rumored to be in the rugged hills outside his hometown of Arteaga.

But the vigilante movement has been plagued by divisions, and its general council dismissed one of the founders, Dr. Jose Manuel Mireles, as its spokesman earlier this week because of an unauthorized video he released directed at President Enrique Pena Nieto. Another founder, Hipolito Mora, is in jail accused of the murder of two alleged rivals. Castillo told Mexico's Radio Formula on Friday that he is also investigating claims that Mireles was involved in the killing of five vigilantes near Lazaro Cardenas on April 27.

Meanwhile, no one is giving up their guns, even assault weapons prohibited under Mexican law.

Vigilante Irineo Mendoza, 44, drove down from his mountain hometown of Aguililla to register his gun with authorities this week. He plans to take the weapon back home with him because, he says, the Knights Templar remain hidden in the mountains.

"These are the guns we are going to fight them with," Mendoza said.

Many predict little will change after Saturday.

"This (demobilization) agreement is just something to please the government," said Rene Sanchez, 22, a vigilante from the self-defense stronghold of Buenavista. "With them or without them, we are going to keep at it."