Teachers and school administrators have a big role to play in continuity and stability of peace in schools. They are closely associated with the education system hence can exert social control of the learners at many learning levels. The problem of student becoming violent in secondary schools especially in Kenya is a common phenomenon. This study investigated the influence of capacity building among teachers in peace initiatives in secondary schools in Kenya. This study adopted a descriptive survey design during data collection. Both qualitative and quantitative data were collected using closed and open ended questionnaires and Likert scale. Stratified and simple random sampling techniques were used in selecting respondents from the randomly selected schools Reliability of research instruments was measured by using, split-half technique and the value was +0.6 which was considered satisfactory. The quantitative data was analyzed using descriptive statistics. Qualitative data was analyzed using content analysis techniques. This study found that the teachers had not been exposed to various skills that are required for developing peace initiatives among students. The study concluded that the teachers in the selected schools had not been offered training in peace initiatives. The findings are hoped to assist the Education managers and other stake holders on the importance to conduct teacher training courses in peace initiatives so that they can maximize their new skills in helping to curb violence that is often witnessed in secondary schools in Kenya.