The Nigerian government’s response to Boko Haram has been fraught from the beginning. President Goodluck Jonathan, a Christian southerner, has behaved as if the insurgency is a creation of northern Muslim leaders and thus their problem to solve. It took him more than three weeks to speak publicly about the abduction of the schoolgirls. His wife, Patience, provoked public outrage when she questioned whether the kidnapping had occurred, claiming it was all a ploy by her husband’s opponents to embarrass him. (She later expressed concern over the missing schoolgirls.) Government critics charge that the military has been slow to respond to the threat posed by Boko Haram because officials are benefiting from the war in the north, siphoning money from the country’s $6 billion security budget.

Residents in the northeast have complained frequently of the army’s indifference. But their grievances coalesced around the response to the kidnapping of the girls. Local officials in Chibok say the army was alerted to the possibility of an attack up to four hours before the girls were abducted, but military reinforcements never arrived. Since then, the military has been criticized for not doing enough to look for the girls. It claimed that it had broken up a Boko Haram cell that participated in the kidnapping and that it was on the verge of rescuing the girls, but they never materialized. The United States and other foreign powers have offered assistance, but finding the girls remains a formidable task. “It’s a big, big challenge,” says Stephen Schwartz, the director of Nigeria policy and operations at the State Department. “If it were up to the United States, we would have difficulty trying to rescue that number of girls over that big an area. It’s a really high-stakes kind of effort. I give the Nigerians a lot of credit for having the forbearance to not try anything premature or reckless.” (The military declined repeated requests for comment.)

Meanwhile, Boko Haram continues to fund and arm itself through bank robberies, extortion, ransom demands, sieges on Nigerian armed forces and, some analysts say, help from affiliates of Al Qaeda. In part, Boko Haram can operate with impunity because much of the northeast remains inaccessible, with bad roads and poor phone reception. Large areas along Nigeria’s borders with Cameroon, Chad and Niger are vulnerable to Boko Haram. “The northern land mass is just huge, and some parts of it are not very hospitable, so the government hasn’t always penetrated into every nook and cranny,” Siollun says. “Those border areas have always been bandit country; it facilitated the emergence of groups like Boko Haram.”

Despite Boko Haram’s increasing strength, the Nigerian government, says Campbell, the former ambassador, has not pursued a comprehensive anti-insurgency strategy. “The government has done very little to address the pervasive sense of alienation among people in the north,” Campbell says. “If you’re going to address the drivers of the insurgency, that takes time. My sense is implementation is very, very slow.” Fatima Akilu, a director in Nigeria’s Office of the National Security Adviser, told me that a deradicalization program is being created to promote sports, literature and the arts to secular and Islamic schools, and that the government is working on an economic-­development plan for the northeast. Akilu says officials also hope to devise “safe passage” for militants who wish to leave the group. She assured me that the Civilian J.T.F. was not a reaction to the military’s failures but rather a natural response on the part of northeasterners to a common threat — a kind of citizens’ brigade. “It was a spontaneous movement that began without any involvement from the state at all,” she says. “These were youths who said, ‘We no longer want you in our communities,’ and they pushed them out. It is an initiative we support.”

From the time Kalli wakes up, around 4:30 in the morning, until he goes to bed, sometimes as late as 2:30 a.m., he receives calls alerting him to Boko Haram sightings, impending or developing attacks and recent abductions and killings. When he hears of a village under siege, he rounds up as many of his boys as he can and heads out to the fight — without protective gear and at times without proper weapons. “Sometimes your gun won’t even work,” he lamented. It was a miracle that only 15 of his men had been killed so far. “God is with us,” he said. When he began this work, his children, whom he calls “my soldiers,” and his wives urged him to reconsider. “I don’t have enough time to get rest or sleep,” he said. “I am always engaged.” Kalli, a Muslim, says he is ready to die for his religion and his country. “These insurgents came to destroy the image of Islam,” he told me. “They are cult members. Islam doesn’t allow anybody to kill anybody, either Muslim or Christian. I want to protect the integrity of this country.” He is still employed by the auditors’ office, but was given an extended leave for this new public service.

When I first met Kalli at the hotel in Maiduguri, he was with three men who had been seized by Boko Haram. The group has turned to forcible recruitment as its violent tactics erode support among northerners. “They began to recruit by force, because they have moved so far from their core ideology,” Akilu says. “When Shekau descended into this indiscriminate slaughter, murdering people for no reason, a lot of people didn’t understand what was going on and did not subscribe to the philosophy of the current leadership.” Sometimes Boko Haram compels the boys and young men it captures to spy or fight for the group; sometimes it kills those it captures, a warning to anyone who would collaborate with government forces. The men with Kalli managed to escape. (This is not unheard of; Boko Haram does not always guard its captives carefully. Right after their abduction, some 50 of the Chibok schoolgirls also managed to get away. One of them, a 14-year-old named Rejoice Yaga, told me that the militants seemed confused and kept asking one another if they should take the girls or leave them.)