Northrop Grumman has signed a cooperative agreement with Kockums AB of Sweden and its parent company, Howaldtswerke Deutsche Werft AG (HDW) of Germany, under which Kockums will join a team assembled by Northrop's Ship Systems sector to compete for the Navy's Focused Mission Vessel Study. According to a statement released today, the study is expected to result in the development and construction of a "Littoral Combat Ship," one element of the DD(X) family of surface combatants planned for construction by...