Why killing our own kind ? and who is behind all this ?

I am sure a lot of people have asked  this same question. I don't really understand why peolple are killing each other. God created us so that we could live together as a family and share what we have been given. But instead people have gone crazy killing each other like a fun game. The world is full of war and if we try to find out exactly why these wars are going on, it seems like there some people some where there who are enjoying this and therefore supporting or encouraging the killing of human kind. This is what i think because it doesn't make any sense at all. Just ask yourself how can a group of people in Somalia, Congo or any other poor nation where there is war afford to buy the guns they are using if they can't afford to buy food for their children at home?

Where are they getting all these?

They are killing people almost every day and one other thing that i don't understand is that; Why can't the politician leders stop the production of weapon ? this could at least reduce the amount of killing and they have the power to do it. I am starting to think that some of our leders are into this business. They earning money on this. This is really bad..bad bad ........this i what has been in my mind the all day after reading an article in todays news paper about the killing in Somalia...