N'afọ 1956 "Fort Mandan" mere ọzụzụ ụgbọelu amphibious na Vieques, Puerto Rico, ma nwekwaa nrụzigharị na Baltimore tupu ọ na-agagharị ọzọ n'ebe ugwu ebe ọ na-agagharị na Septemba na Ọktoba. Ọmụmụ ihe amphibious weghaara ya ọzọ na Nọvemba 1956 na ọtụtụ nke 1957 mgbe ọ sonyere na "Caribex" na Panama Canal Zone
na "Narmid" 1 na 2. Site na Septemba ruo Nọvemba 1957 e tinyere ya na MSTS maka Ọrụ Arctic, na-ebufe ndị agha na akụrụngwa site na Greenland gaa Newfoundland na Virginia na ọrụ mmechi oyi.