Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Defensieverplichting-nl#Sense
Obligations de défense-fr#Sense
Sikkerhedsgodkendelse-da#Sense
Defence contract-en#Sense
Verteidigungspolitische Auflagen-de#Sense
Condizioni richieste dal ministero della difesa-it#Sense