The presence of a federal military force in Jamaica presented the Jamaican government with constitutional difficulties regarding the use of WIR troops for internal security operations. As a result, a territorial auxiliary called the Jamaica Territorial Regiment was set up alongside the 1st Battalion WIR in February 1961 (the Jamaica Territorial Regiment would be renamed the Jamaican National Reserve in January 1962 and would later become a component of the Jamaica Defence Force). The 1st Battalion WIR was used in a variety of internal security roles prior to the enacting of Federal legislation (in May 1960) and Jamaican legislation (in December 1960) to resolve these difficulties. It was also used for internal security purposes between April 1960 and mid-1962. Ironically, one such operation was to supervise the referendum in Jamaica that resulted in the dissolution of the West Indies Federation and the WIR along with it and in the creation of the Jamaica Defence Force.