About: http://webisa.webdatacommons.org/339737240

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Operating singly or perhaps in pairs, and in cooperation with submarines and other units, they would add enormous complexity to an enemy???s sea-denial or sea-control problem.
http://www.w3.org/ns/prov#wasQuotedFrom	usni.org