They protected the Western & Atlantic railroad which was confederate general Joseph E. Johnston’s supply link to Atlanta
Probably better defense systems or training people in the army.
A primary source is made by someone who was there during the event. In this case, it’s the American Revolution. There isn’t a provided picture (well at least on my screen there isn’t) so I can’t give whatever the choices are, but some examples of a secondary source are:
textbooks, book reviews, reprints of maps/artworks, etc.
Julius<span> and </span>Ethel Rosenberg were<span> United States citizens who spied for the Soviet Union and </span>were<span> tried, convicted, and executed for conspiracy to commit espionage.</span>