Some other lessons from Somolia
1. If the commander on the scene says he needs armor to protect his people, don't let some bureaucrat or political flunky reject the notion because it "would send the wrong political message." (Les Aspin, then Sec Def).
2. If your troops come under heavy fire, sent in backup ASAP.
3. It pays to have snipers attached to your units. Two of those men were snipers who volunteered to help their besieged buddies. They died in the line of duty but inflicted a lot of damage before they went down. They were each awarded the Medal of Honor for their courage.
Blackhawk Down