ABSTRACT:- Nigeria is beset with a lot of security problems such as Boko Harm, militancy, kidnapping, ethno-religious conflicts, drug trafficking, agitation for resource control, communal riots, arms smuggling, and criminality that erode national security. No country can survive economically, socially and politically in a climate of insecurity. Data was collected from secondary sources. Frustration aggression theory propounded by John Dollard, Neal Miller, Leonard Doob, Orval Mowrer and Robert Sears was adopted. The study explores the insurgencies prevalent in Nigeria which include Boko Harm, Fulani Herdsmen, Militancy, Kidnapping, Banditry and Cattle Rustlers. The paper also examines the ways through which government can tackle or curb the menace of insurgencies in Nigeria. It therefore recommends that government should improve and integrate its intelligence gathering technology and sharing across security agencies and other aspects of government this will be helpful in curbing crime. Also the armed forces should be trained, financially motivated, empowered and equipped them with modern and sophisticated weapons to fight and overcome insurgencies in Nigeria.

Keywords:- Insurgencies, National Security, Boko Haram, Militancy