I do not understand why people want to kill each other. War is not good because it always has a sad ending. Guns and tanks shoot everywhere. People die. Bombs come to destroy houses and cities. People scream for help. Long time ago until now, soldiers fight with guns. In world war II, there was the biggest bomb called atomic bomb. It destroyed millions of people. There were lots of aeroplanes  dropping bombs behind the enemy lines. I watched all these on a video and I asked myself why they kill each other. But I could not find the answer.