Two inventions from the World War two are the radar and the sonar, both of which had a huge impact in the war, but also after it, becoming a widely used devices all over the world.
The radar was an invention that was enabling detection of objects in the air. Initially it is was used for detection of planes, as that's where the biggest threat was coming. This device enabled the soldiers and the civilians to be warned about the oncoming danger, but also to be able to respond adequately to the threat.
The sonar was another invention inspired by the war. It had the same basic purpose as the radar, just that it was used for detecting objects in the water. This was a crucial instrument that gave the submarines big advantage in locating the enemy and destroying it, or if not capable of that, being able to move away and avoid it.
True - the purpose of the expedition was to map the new louisiana territory as well as lay claims to the oregon country :)
The correct answer is the Storming of Normandy.
This military campaign by the Allied forces against the Axis powers was the largest air and sea attack during World War II. The ultimate goal of this military invasion was to gain control of France since, at the time, the country was under control of Nazi Germany. This was an iconic moment for the Allied powers, as they were able to free France from Nazi German rule.
we wanted nothing to do with ww2 until pearl harbor
