About: http://webisa.webdatacommons.org/258006238

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	Limited avenues of approach, rubble and other obstacles decrease the chances for a large unit to achieve surprise.
http://www.w3.org/ns/prov#wasQuotedFrom	cryptome.org