>>8088209 /lb
My preference: Force Sentinels
Pros:
Two words
four syllables(fewer is better. Ex: Coke(1))
References the person(Sentinel is a person)
Conveys protection
Natural tie in the parent brand(Space Force), ie: Space Force Sentinels
Little to no preconceived notions(unaided awareness)
Contains plosives
Contains sibilants