About: http://webisa.webdatacommons.org/10591932

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	must be emphasised that at no time during the war did the damage and losses caused to the U-boats by our mines compare in importance with what was achieved by our air and surface convoy escorts.33
http://www.w3.org/ns/prov#wasQuotedFrom	ibiblio.org