Sentry - 459 accompanied a Kree scientific party that journeyed to Earth to experiment on sub-humans ( which in turn created the race the Inhumans ) .
The Sentries ' main purpose is to stand guard over military outposts and depots throughout the Kree Empire .
Sentries     accompanied a Kree scientific party that journeyed to Earth to experiment on sub-humans ( which in turn created the race the Inhumans ) .
The Sentries ' main purpose is to stand guard over military outposts and depots throughout the Kree Empire .