Korea: A Degenerate State by George Kennan
The Outlook, October 7, 1905, pp. 307-314
The Korean People: The Product of a Decayed Civilization by George Kennan
The Outlook, October 21, 1905, pp. 409-415
The Japanese in Korea by George Kennan
The Outlook, November 11, 1905, pp. 609-615
What Japan Has Done in Korea by George Kennan
The Outlook, November 18, 1905, pp. 669-672
He describes Korea as a hopelessly corrupted and rotted country. He also criticizes about the errors in judgments and failures of the Japanese authorities while admitting its intention is good.
It is more interesting if you read Korea and her neighbors which was published in 1898 beforehand. You can read my excerpts. And of course, I recommend you to read Datsu-A Ron witch was written in 1885 as well in order to get better picture.