Department of National Defense (DND) spokesman Peter Galvez said they have yet to determine where the US military will construct its facilities or preposition relief supplies as stated in the Enhanced Defense Cooperation Agreement (ECDA). preposition relief supplies as stated in the Enhanced Defense Cooperation Agreement (ECDA). Galvez also said the agreement will only last for 10 years, but it can be renewed if both governments wish to do so. Mornings @ ANC, April 29, 2014