Since 2013, the north of Nigeria has witnessed an increased involvement of the militia group ‘Civilian Joint Task Force’ (CJTF) in combating the Islamist insurgent group Boko Haram. The mobilization of the Civilian Joint Task Force brought a tremendous success to the counterinsurgency operation. Before the CJTF’s engagement, the antiterrorism efforts of the government were marred by negligent performance. In addition to helping decrease the attack frequencies and number of fatalities caused by the insurgent group, the militia succeeded in expelling Boko Haram fighters from the towns and villages they had previously occupied. However, the unprecedented participation of the Civilian Joint Task Force in the counterinsurgency campaign has raised certain suspicions of the public in regards to the CJTF’s ulterior motives. This paper, therefore, explores the motives that triggered people’s participation in the Civilian Joint Task Force with the aim to combat the Boko Haram insurgent group. The current paper is a qualitative research, designed as a case study. The empirical data were collected by means of an in-depth interview involving 13 respondents, among who were the members of the CJTF, community leaders and government officials in Yobe State, Nigeria. The findings show that people’s participation in the CJTF is voluntary, with the main motivation being the necessity to defend the community due to the state’s failure to provide adequate protection. The article points out an urgent need to demobilize and deradicalize the participants in order to prevent the CJTF from further jeopardizing local communities’ peace and stability.