[POWER RANGERS] Best non ranger protection force

Which non ranger (for the most part) organization that actually protected people do you think is the best in the series?



Terra Venture's Starship Troopers

Silver Guardians

Wind Ninja Academy



If there are any others I'm missing (not familiar Jungle Fury, RPM and Operation Overdrive) let me know. Lets use two categories here.

1) cool factor

2) most effective at protecting people