 The formation and development of the then Hoboken Port of Embarkation early in World War I was the basis for a massive and complex Army command by the time the concept reached its full development in World War II.As the first and by far the largest POE in World War I NYPOE served as the model for general POE concepts and continued its role as the largest of the ports throughout World War II.Even though the First World War POE command was disbanded the interwar years saw some of the same concept and core functions operating at the two major Army ports at Brooklyn Army Base and Fort Mason in San Francisco.