Assertion: frigate's system | /r/HasProperty | essential
Facets:
value: for protecting israel
type: PURPOSE
Source sentences:
text: The reason that it is number 1 on this list is that this system is essential for protecting Israel from the smallest threats (rockets, artillery shells, mortars) which are targeted at civilians and it has successfully done its job over the past few years and remains the most combat proven modern air defense system in the world.