The Jamaica Defence Force (JDF) is the combined military of Jamaica, consisting of an infantry Regiment and Reserve Corps, an Air Wing, a Coast Guard fleet and a supporting Engineering Unit. The JDF is based upon the British military model, with similar organisation, training, weapons and traditions. Once chosen, officer candidates are sent to one of several British or Canadian basic officer courses depending upon the arm of service. Enlisted soldiers are given basic training at JDF Training Depot Newcastle. As in the British model, NCOs are given several levels of professional training as they rise up the ranks. Additional military schools are available for speciality training in Canada, the United Kingdom, and the United States.

The Jamaica Regiment is the main formation of land troops in the Jamaica Defence Force. It is a non-mechanised infantry regiment consisting of five battalions, three regular infantry battalions, one territorial infantry battalion, and a Combat Support Battalion. A fifth infantry battalion is starting to be formed. The regiment has two main operational missions:The territorial defence of Jamaica. Assisting the Jamaica Constabulary Force with local law enforcement.