Statistics for occurrence #1 of “United States” in chapter 12, page 158 of Horace Greeley, The American Conflict: A History of the Great Rebellion in the United States of America, 1860-65: its Causes, Incidents, and Results: Intended to exhibit especially its moral and political phases with the drift and progress of American opinion respecting human slavery from 1776 to the close of the War for the Union. Volume I.:
...o say that the welfare and happiness of our Union require that it should be accepted.
If, in a military point of view alone, the question be examined, it will be found to be most important to the United States to be in possession of the territory.
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