 From 23 December 1972, to 19 January 1973, elements of the 13th Support Brigade deployed to the 1972 Nicaragua earthquake to assist in disaster relief serving at Camp Christine, Managua, Nicaragua.Since the early 1970s, Fort Hood has played a major role in the training, testing, and introduction of new equipment, tactics, and organizations.The U.S. Army Training and Doctrine Command's Test and Experimentation Command (now the U.S. Army Operational Test Command), located at West Fort Hood has been A primary player.