Yeah, the local people don't trust men without beards basically.. Shaving is against their interpretation of Islam. It's not mentioned in Quran but some Hadiths ban shaving your beard.
SEALs prior to Operation Red Wings, summer 2005, (L to R): Matthew Axelson, Daniel R. Healy, James Suh, Marcus Luttrell, Eric S. Patton, Michael P. Murphy