Statistics for occurrence #1 of “Japan” in chapter 1, page 16 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 4: The Cavalry:

...litary students. In the meantime other wars came to pass in succession — Austro-Prussian (1866), Franco-German (1870), Russo-Turkish (1877), and later the Boer War and that between Russia and Japan .
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Japan (Japan) 930 2 0 0 0 user votes
Japan (Missouri, United States) 0 0 0 0 0 user votes
Japan (Pennsylvania, United States) 0 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.