Are you familiar with Krav Maga? It is a military fighting system created for the Israel Defense Forces.
No i have never been a good fighter or know much about fighting. Tell me more. 
Sure, no problem. It is derived from a combination of fighting styles including Judo, Boxing, and Wrestling.
That is cool. It means you can use various techniques in one fight
Yes, exactly. Krav Maga is known for its focus on handling real-world situations with efficiency.
DO you know how to fight in this style?
No, I never learned it. I know a little tae-kwon-do though!
Hmmm. Where did  tae-kwon-do originate? Many people has always talked about it.