Statement to Japanese cabinet minister Shigeharu Matsumoto and Japanese prime minister Fumimaro Konoe, as quoted in Eagle Against the Sun: The American War With Japan (1985) by Ronald Spector. This remark would later prove prophetic; precisely six months after the attack on Pearl Harbor, the Japanese navy would suffer a major defeat at the Battle of Midway, from which it never recovered.
Isoroku Yamamoto: Unit
Isoroku Yamamoto was Japanese Marshal Admiral. Explore interesting quotes on unit.“You cannot invade the mainland United States. There would be a rifle behind every blade of grass.”
It has been declared this attribution is "unsubstantiated and almost certainly bogus, even though it has been repeated thousands of times in various Internet postings. There is no record of the commander in chief of Japan’s wartime fleet ever saying it.", according to source Brooks Jackson in "Misquoting Yamamoto" at Factcheck.org (11 May 2009) http://www.factcheck.org/2009/05/misquoting-yamamoto/, which cites source Donald M. Goldstein, sometimes called "the dean of Pearl Harbor historians", writing "I have never seen it in writing. It has been attributed to the Prange files [the files of the late Gordon W. Prange, chief historian on the staff of Gen. Douglas MacArthur] but no one had ever seen it or cited it from where they got it."
Misattributed
As quoted in At Dawn We Slept (1981) by Gordon W. Prange, p. 11; this quote was stated in a letter to Ryoichi Sasakawa prior to the attack on Pearl Harbor. Minus the last sentence, it was taken out of context and interpreted in the U.S. as a boast that Japan would conquer the entire contiguous United States. The omitted sentence showed Yamamoto's counsel of caution towards a war that would cost Japan dearly.