"Something more interesting than simple gang growth/spread, is the increasing presence of gang members in the military (primarily the Army) and the transfer of combat skills gained in Iraq/Afghanistan to the street. The FBI report states that 100 police jurisdictions have reported coming into contact with gang members with recent military experience. This training, gained on the battlegrounds of Iraq and Afghanistan, is extremely good (and for some people, extremely addicting). As we have seen in the recent past, even a single man with combat experience and some weaponry can be a HUGE problem for local police."