Defensive Mode 1 : Crews not committed actively to the risk areas. (Conversely Offensive Mode is when crews are committed actively within the risk areas / inner cordon.)
Solent and Southampton Water Marine Emergency Plan (short title: SOLFIRE), Local and National Emergency/Contingency Plans, annex 6 Hampshire Fire and Rescue Service Glossary of Terms, Annex 7 - List of Acronyms, Portsmouth International Port, Portsmouth, UK 2009. http://www.portsmouth-port.co.uk/pmsc/solfire.pdf, (Mrn Emr Opr - Brit) {534}