The United Nationalist Democratic Organization (UNIDO) was the main political multi-party electoral alliance of the traditional political opposition during the turbulent last years of Philippine President Ferdinand Marcos in the mid-1980s. It was formed in January 1980, and was originally known as the United Democratic Opposition from 1980 to 1982. It was initially a union of eight major and minor political parties and organizations with the main aim to oust President Marcos through a legal political process. In April 1982, the coalition changed its name to United Nationalist Democratic Organization, and increased its members to twelve parties. Shortly after the assassination of popular oppositionist Senator Benigno Aquino, Jr., the party was led by Senator Salvador Laurel of Batangas. In