Laws passed by the national government and all treaties are supreme law.
An arms race is the competition between nations to have the best weapons, superiors technology, great armies, and the best-armed forces. It was during the cold war that the nations had arms race together with the development of hydrogen bomb. Nuclear bomb testing were all over the world creating the red scare for the people.
The correct answer is that the iron support structure was visible
When you build something, the structural points such as pillars are usually not easily discernible to the untrained eye because they fit right there with the remaining walls and things like plaster or bricks. However, his Palace was built out of Glass so the iron supporting structures could easily be seen and it looked great.
it could be one 830 or 160