Requirements are prioritized to determine which requirements will be included and excluded from the project. Rationale/Purpose Defining requirements specifies the capabilities, features or attributes of the projectâs deliverables.
On January 31, 1917, Germany, determined to win its war of attrition against the Allies, announced it would resume unrestricted warfare in war-zone waters. Three days later, the United States broke diplomatic relations with Germany, and just hours after that the American ship Housatonic was sunk by a German U-boat.
U-boats were used by the German Navy in World War 1 before the Nazis even came into existence. U-boat is an â¦ abbreviation of underseeboote (undersea boat); the German term for submarine then, and now.