Statistics for occurrence #1 of “United States” in chapter 14 of Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 1.:

...to inform him of the time when his quota might be expected at its rendezvous, as it would be there met, as soon as practicable, by an officer or officers, to muster it into the service and pay of the United States . He directed that the oath of fidelity to. the United States should be administered to every officer and man; and none were to be received under the rank of a commissioned officer who was apparently...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 752 0 0 0 user votes
United States (New Mexico, United States) 6 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.