The nation that threatened Japanese colonial aspirations most in the late 19th and early 20th centuries was AP World History Chapter 27 The nation that threatened Japanese colonial aspirations most in the late 19th and early 20th centuries was (A) Great Britain. (B) Russia. (C) China. (D) Korea. (E) the United States. Answer: B Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+