Portales is a city in and the county seat of Roosevelt County, New Mexico, United States. The population was 12,280 at the 2010 census. Portales is located near the larger city of Clovis as well as Cannon Air Force Base, a major contributor to the economy of the region. Eastern New Mexico University opened in Portales in 1934 and has grown to become the third largest university in the state.
Overview. DDT was widely used during the Second World War to protect the troops and civilians from the spread of malaria, typhus and other vector borne diseases. After the war, DDT was widely used on a variety of agricultural crops and for the control of disease vectors as well.
The Underwater Demolition Teams ( UDT ) were an elite special-purpose force established by the United States Navy during World War II . They also served during the Korean War and the Vietnam War . Their primary function was to reconnoiter and destroy enemy defensive obstacles on beaches prior to amphibious landings.