Assertion: spy satellite | /r/HasProperty | essential
Facets:
value: to the formation of national policy
type: TRANSITIVE-OBJECT
value: to military operations
type: TRANSITIVE-OBJECT
Source sentences:
text: Spy satellites have been essential not only to military operations and the formation of national policy but to the verification of arms control treaties such as SALT I, SALT II, and the Comprehensive Test Ban Treaty.
text: Spy satellites have been essential not only to military operations and the formation of national policy but to the verification of arms control treaties such as SALT I, SALT II, and the Comprehensive Test Ban Treaty.