Despite recent increase in terrorism research, both the academic community and general news media have, to a large degree, failed to include the situation in Kenya, a country suffering from continued terrorist attacks by the Somali terrorist organization al-Shabaab (Botha, 2014a, p. 1). In 2016, al-Shabaab carried out 48 attacks in Kenya, while being suspected of 9 additional attacks (Global Terrorism Database, n.d.). Many of the attacks were carried out by local perpetrators due to the group’s growing support among Kenyan youth (Adow, 2015). Al- Shabaab’s presence constitutes a major security issue, which also compromises Kenya’s development (Cachalia, Salifu, and Ndung’u, 2016, p. 1). Specifically targeting youth, al-Shabaab exploits the socio-economic, political, and cultural grievances experienced by many Kenyan youth, whom due to different macro- and micro-level factors are vulnerable for recruitment to violent extremist groups (Villa-Vicencio, Bunchanan- Clarke, and Humphrey, 2016, p. 18). With a focus on Kenya, this thesis aims to highlight contributing factors of youth radicalization. Additionally, this thesis investigates how unemployment and marginalization can contribute to increase youths’ vulnerability to al-Shabaab recruitment. Whereas most previous research dismisses any possible links between poverty and radicalization (Krueger and Malečova, 2003; Meotti, 2016), this thesis finds that complete dismissal of such relationship is unfortunate. The findings suggest that certain socio-economic factors, unemployment, and marginalization can increase youths’ susceptibility to al-Shabaab. However, the factors must be considered in relation to individual and social micro-level factors, arguing that the radicalization process is mostly individual and highly complex. Contrary to previous research, this thesis finds little evidence supporting strong relationship between religious ideology and recruitment to al-Shabaab. Despite the Kenyan government’s efforts to prevent terrorism through different P/CVE implementations, the government has failed to properly address the underlying causes of youth radicalization. Instead, the punitive approach with mass-arrests and extrajudicial killings have increased tension and fuelled support for al-Shabaab.