why can't we live in peace?why we have to fight?

we cannot say soon, because every time they have a fight, they will earn more money ,as they said war is a good bussiness. for people who start those thing, they will be have a fancy life but innocent people will die because of their game.

I've thought about this question many times. It makes sense for the world to stop fighting and to live in peace, but everyone won't agree. Fighting and violence have both become a normal thing for many people around the world. This is sad and shouldn't be so! But it's what we must deal with. Global peace will come soon, however. I don't know exactly when, but I can see signs of it. The first clue is that the Euro is becoming a more common currency. Perhaps this form of currency will take over all others. Other currencies are losing their value rapidly. If the world could have one standard currency, that would be a huge step in reaching world peace. True peace across the world will come in time, so there is hope. However, we must deal with it now and look forward to better times. Great discussion!