1. D
2. D
3. A
4. A
Hope I helped :)
The allied powers used land as their mail gorund to fight on while the germans used the sea as a sneek attack bc the allied powers didn't see it coming that is how the ussr was sank bc of a surpisre attack from the Germans .
I believe both originated and evolved in the United States during the late 1940s and early 1950s
self incriminate is the answer