On 1 July 1960, the State of Somaliland and the Trust Territory of Somaliland (the former Italian Somaliland) united as planned to form the Somali Republic. Inspired by Somali nationalism, the northerners were initially enthusiastic about the union. A government was formed by Abdullahi Issa, with Aden Abdullah Osman Daar as President and Abdirashid Ali Shermarke as Prime Minister (later to become president, from 1967 to 1969). On 20 July 1961 and through a popular referendum, the Somali people ratified a new constitution, which was first drafted in 1960. The constitution had little support in the former Somaliland, and was believed to favour the south. Many northerners boycotted the referendum in protest, and over 60% of those who voted in the north were against the new constitution. Regardless, the referendum passed, and Somaliland became quickly dominated by southerners. As result, dissatisfaction became widespread in the north, and support for the union plummeted. British-trained Somaliland officers attempted a revolt to end the union in December 1961. Their uprising failed, and Somaliland continued to be marginalized by the south during the next decades.