World War 2 is the due to the World War 1. In World War 2 Germany want their territory back which was taken from them in World war 1. World War 2 is the deadliest war in the history having the highest no. of deaths. In this topic we will discuss world war 2 in the shortest way possible very quick. Why World war 2 started? When was it Started? Who Won World War 2? All these and many more questioned will be answered here in this topic.