They wear specialized armor and gear that let them operate effectively in icy conditions. Snowtroopers carry a backpack-style personal environment unit and wear insulated helmets with glare-reducing slit lenses, gloves, a kama, and a heat-resistant body glove beneath an oversuit of wind-resistant fabric. Snowtrooper teams scouted the planet that once housed Starkiller Base, eliminating native life forms that posed a potential threat.[59] Executioner Troopers, introduced in The Last Jedi (2017), are a branch of military police specialists specifically founded to dispense final justice toward stormtroopers who are found guilty of treason.