future. Radar and sonar were developed to detect objects in the air and ocean.
31. Antibiotics like penicillin were mass-produced to treat wounded soldiers.
32. The U.S. gained the upper hand in the Pacific by winning the Battle of Midway.
33. Instead of sending American troops to invade Japan, atomic bombs were dropped on Hiroshima and Nagasaki.
34. Soon afterwards, the Japanese surrendered bringing an end to WWII.
35. The technological developments of WWII helped the Allies to win the war and had an impact on the future.