Krop is a soldier of the Wolpi dirt men, AKA a trench soldier

Krops job is to hold their position while the wolpi bunkers and outposts are being built
The trench is a viral key in the war allowing wolpi to hold enough forces to make a proper base of defence

Krop has two brothers who also serve in the wolpi army, Kam the youngest is a pilot, Joik the middle serves the navy

Krop keeps his rifle by his side at all times, just like any other wolpi
 he wears a tan uniform and black muzzle 