Connection Across Time(World War 2)

World War 2 is similar to World War 1. But during WWII we saw a few new war tactics. The huge one is the Atomic bomb. The atomic bomb was first used by the U.S. on Japan and now today many nations have nuclear weapons. WWII also shaped the way that today's society looks. In Europe there's a lot more nations and we now have the U.N., that helps solve conflicts between nations without using violent force.