^ Theodore Roosevelt, The Works of Theodore Roosevelt: National Edition vol 16: American Problems (New York, 1926) p 84, speech of Aug 20, 1907.

^ Roosevelt to William Henry Moody, Sept 21, 1907, in Elting E. Morison, ed., The Letters of Theodore Roosevelt  (1952) 5:802.

^ William Michael Morgan, "The anti-Japanese origins of the Hawaiian Annexation treaty of 1897."Diplomatic History 6.1 (1982): 23–44.

^ James K. Eyre Jr, "Japan and the American Annexation of the Philippines."Pacific Historical Review 11.1 (1942): 55–71 online Archived October 21, 2021, at the Wayback Machine.

^ Michael J. Green, By More Than Providence: Grand Strategy and American Power in the Asia Pacific Since 1783 (2019) pp. 78–113.

^ Charles E. Neu, An Uncertain Friendship: Theodore Roosevelt and Japan, 1906–1909 (1967) pp. 310–319.

^ Matsumura Masayoshi, "Theodore Roosevelt and the Portsmouth Peace Conference: The Riddle and Ripple of his Forbearance."in Rethinking the Russo-Japanese War, 1904–5 (Global Oriental, 2008) pp. 50–60.

^ Kissinger, pp. 41–42

^ Neu, pp. 263–280

^ Thomas A. Bailey, "The Root-Takahira Agreement of 1908."Pacific historical review 9.1 (1940): 19–35. online Archived October 23, 2021, at the Wayback Machine

^ Brands 1997, pp. 614–616.

