WWII, was pretty advanced and our military hardware from 1950-60's has striking resemblence to that of WWII Germany's. Even WWII there were nukes, drones, missles, plenty of unconventional warfare (special units), radar, and lord knows what else. They were not as advanced in some was as today but development in that era brought us to where we are today and in some ways the analog tech back then was more simple and reliable.
