Yoshida, who saw the occupation of Singapore and the crushing defeat in the Battle of Midway in 1942 as a good opportunity, proposed sending Konoe to Switzerland and negotiating with Great Britain and the United States and because Konoe agreed, this suggestion was conveyed to Koichi KIDO, but KIDO rejected it.
1942年（昭和17年）のシンガポール占領とミッドウェー海戦の大敗を好期と見た吉田は、近衛をスイスに派遣し、英米との交渉を行うことを持ちかけ、近衛も乗り気になったため、この案を木戸幸一に伝えるが、木戸が握り潰してしまった。