Thesaurus Term/Concept: ANTI SUBMARINE DEFENCE

Identifier	140767
Class	DEFENCE OF BRITAIN
Status	Preferred
Index?	Yes
Scope Note	Defence sites and structures including passive and active defences such as netting, chain booms and mines designed to prevent submarines approaching strategic ports.

Broader Terms/Concepts (1)

Related Terms/Concepts (0)

Narrower Terms/Concepts (0)

Instances/Examples (1)

Context	Record
Monument Type	MHG36400 Nigg-Cromarty Anti-Submarine Boom (Monument)