Compare and contrast the primary source with the secondary source. Use examples from both sources to explain similarities and differences in the author's claims about the:
interactions between Natives and European explorers
the impact European explorers had on Native populations

Why would a historian want to use both sources in order to understand the impact of Columbus?
i need this in a paragraph answer for a assignment 35 points for a paragraph answer

the deaths of over a million communist soldiers

post-traumatic stress disorder in veterans

the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]