In president lincoln gettysburg address what did he make undoubtedly clear?

The war would determine the survival of a country dedicated to freedom and equality

Explanation:

Lincoln began the speech with "Four score and seven years ago, our fathers brought forth on this continent a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal".  He brought focus on the ideals of the country's founding and the crucial mission to preserve the union and thus, the democracy.

yes, there are senators in each state

i think it is the byzantine empire