Final answer:
The theme present in both Roosevelt's and Lincoln's excerpts is the necessity for Americans to carry on the fight for democracy and equality initiated by deceased soldiers.
Explanation:
The theme expressed in both excerpts is that Americans must continue the deceased soldiers' fight to preserve both democracy and equality. Roosevelt emphasizes the importance of freedom and human rights, supporting those who fight for or defend these rights. Lincoln, in the Gettysburg Address, speaks of dedicating the nation to the unfinished work of soldiers who sacrificed for the ideals of the country, emphasizing the preservation of a government by and for the people.
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