Here in lies the issue. People think that somehow because we are so advanced today technologically that it also extends to every aspect of our existance, but it is a fallicy to believe that.
Do you really think humans today attack other humans any different than they did 1000 years ago? What other than a strike, kick, tackle, or other various but limited amount of things a human can do physically, do you think people do today? Unless there are some people walking around that have 3 arms 4 legs, and two heads and tail, I doubt seriously we are seeing anything in human physical combat that is NEW that they didn't see 1000 years ago.
This is regards to unarmed conflict.