That is a fascinating graphic, especially when you think of the political/military issues in those countries in various years.
Got a chuckle out of poor J. Boylan in the Comments, who seemed dead set on proving a somewhat fuzzy point and insulting everyone else.
Say, where did the China numbers come from? If those numbers are vague, does that cast doubt on all the others? I'm assuming "army" refers to all the military groups in the geographical area, including navies and air forces, regardless of allegiances. (I don't think the Confederate States Army would be considered the same military unit as the United States Army!)
Thanks for posting this.
Tom M.