"In dealing with the China problem, the British and American side, which had particularly strong interests in China, should have based its judgments about the origins of the problem on direct observation of the actual circumstances at the time"

This quote by Hideki Tojo is referring to the China issue, which was a conflict in between China and Japan in the 1930s. Tojo is suggesting that the British and American sides, who had a beneficial interest in the result of the conflict, must have taken a more active function in comprehending the situation. He is recommending that they must have based their judgments on direct observation of the actual circumstances at the time, rather than depending on second-hand info or hearsay. This would have allowed them to gain a better understanding of the circumstance and make more educated decisions. Tojo's quote is a tip that it is essential to put in the time to comprehend the facts of a situation before making any choices.