My brother did three tours in Nam as an advisor to the ARVN and they worshipped him like a god and gave him medals galore because he knew what he was doing and was a badass. The VC/NVA avoided his outfits like the plague--if they could. My brother was relatively fearless, but he was afraid of the HALO jumping hell raising, independent operators and professional assassins of the SOG groups. They were given improbable and impossible missions deep in Injun country, and were on their own often for weeks at a time. Not for the unfit or the faint of heart. The stories were unbelievable, if you could get one to talk. Go anywhere-do anything-come back and get ready for the next one.