After WW2, as the cold war built up, many people built fallout shelters. They were good for other things besides nuclear war, ranging from a tornado shelter to a wine cellar.
1945
Nuclear arms race.
Manhattan Project was the code name for the secret project to design and build a nuclear bomb.
United States of America. Why? Because it has over 160 Nuclear reactors to produce Plutonium and Tritium. This rapidly alows engineers to construct more warheads.
This question is, unless I'm mistaken, unanswerable due to the rules that I have agreed to in order to do this task. Learning how to build a nuclear weapon, or nuke, is NOT something appropriate for all ages.
build more nuclear plants
Build more nuclear plants
To get nuclear weapons, you must build the Manhattan Project.
It is legal to build a nuclear power plant in the U. S., provided the licenses and permits are granted.
Build a missile for launching satellites into orbit. Build a nuclear bomb. Replace the satellite payload of your missile with that nuclear bomb. Adjust the missile guidance system to drop the bomb on a selected target instead of injecting it into orbit. Simple?
The current-generation U.S.S. Virginia nuclear attack submarines cost between 1.8 and 2 billion dollars each, including the amortized development costs for designing the class (i.e. it costs about 1.4 billion or so to actually build the sub, but there were several billion in startup, R&D, and design costs for the class, which adds about .5 billion to each sub). A typical non-nuclear attack submarine (such as the German Type 212) costs around $500 million, including the amortized development costs. Note that the typical non-nuclear attack submarine is usually about half the size (and a quarter of the displacement) of a nuclear attack sub.
Build more nuclear power plants!
sometimes (depending on level of skill) you will get a free attack after your regular attack and yea, its good to build up.
almost anyone that can get the materials
1945
no where
not without a permit