Most likely A. The use of powerful weapons like the atomic bomb increased the percentage of civilian casualties. I would’ve said D. But aerial combat was actually introduced in ww I
Countries would want to keep or make nuclear or bio weapons to become world powers or have the upper hand against other nations without that kind of power
They basically wanted them off "their" lands and they despised the native Americans and really didn't care for the natives .they put them on a reserve and let them live their.<span />
The headright system was created to encourage immigration to the colonies so, the more a person brought with them (family and such), the more land they would get in the abundant land the colonies had.
Some of theses changes should occur when there is no war going on. This is to make the country be modernized by the technology. If there is a war going on, the improvement of each technologies will be lessen and could possibly be stopped.
