Code Talker by Joseph Bruchac — Read

The Allied plan of bombing the great cities of the Japanese mainland had continued all through our invasion of Okinawa. From high in the sky B-29s dropped thousands of tons of high explosives on every Japanese city. Tokyo itself was completely destroyed in a giant firestorm. In July of 1945, Emperor Hirohito sent a letter to the Supreme Military Council, urging them to seek peace. They ignored his message.

Then, on August 6, 1945, a plane took off from the air base on Saipan. It carried America's secret weapon, a single atomic bomb. When that bomb fell on Hiroshima, it destroyed the whole city. Over 70,000 people died. Two days later, a second plane took off from Tinian and dropped a second atomic bomb on Nagasaki.