1) It was only after the war that the American public learned about Japan's efforts to bring the conflict to an end. Chicago Tribune reporter Walter Trohan, for example, was obliged by wartime censorship to withhold for seven months one of the most important stories of the war.
In an article that finally appeared August 19, 1945, on the front pages of the Chicago Tribune and the Washington Times-Herald, Trohan revealed that on January 20, 1945, two days prior to his departure for the Yalta meeting with Stalin and Churchill, President Roosevelt received a 40-page memorandum from General Douglas MacArthur outlining five separate surrender overtures from high-level Japanese officials. (The complete text of Trohan's article is in the Winter 1985-86 Journal, pp. 508-512.)
This memo showed that the Japanese were offering surrender terms virtually identical to the ones ultimately accepted by the Americans at the formal surrender ceremony on September 2 -- that is, complete surrender of everything but the person of the Emperor. Specifically, the terms of these peace overtures included:
* Complete surrender of all Japanese forces and arms, at home, on island possessions, and in occupied countries.
* Occupation of Japan and its possessions by Allied troops under American direction.
* Japanese relinquishment of all territory seized during the war, as well as Manchuria, Korea and Taiwan.
* Regulation of Japanese industry to halt production of any weapons and other tools of war.
* Release of all prisoners of war and internees.
* Surrender of designated war criminals.
Is this memorandum authentic? It was supposedly leaked to Trohan by Admiral William D. Leahy, presidential Chief of Staff. (See: M. Rothbard in A. Goddard, ed., Harry Elmer Barnes: Learned Crusader , pp. 327f.) Historian Harry Elmer Barnes has related (in "Hiroshima: Assault on a Beaten Foe," National Review, May 10, 1958):
The authenticity of the Trohan article was never challenged by the White House or the State Department, and for very good reason. After General MacArthur returned from Korea in 1951, his neighbor in the Waldorf Towers, former President Herbert Hoover, took the Trohan article to General MacArthur and the latter confirmed its accuracy in every detail and without qualification.
2) On May 28, 1945, Hoover visited President Truman and suggested a way to end the Pacific war quickly: "I am convinced that if you, as President, will make a shortwave broadcast to the people of Japan - tell them they can have their Emperor if they surrender, that it will not mean unconditional surrender except for the militarists - you'll get a peace in Japan - you'll have both wars over."
Richard Norton Smith, An Uncommon Man: The Triumph of Herbert Hoover, pg. 347.
3) In early May of 1946 Hoover met with General Douglas MacArthur. Hoover recorded in his diary, "I told MacArthur of my memorandum of mid-May 1945 to Truman, that peace could be had with Japan by which our major objectives would be accomplished. MacArthur said that was correct and that we would have avoided all of the losses, the Atomic bomb, and the entry of Russia into Manchuria."
Gar Alperovitz, The Decision to Use the Atomic Bomb, pg. 350-351.