Considering that it requires totally different mindsets for both Hitler and the Japanese Millitarists without butterflying away their paths to power, I suppose you could say it technically belongs in Alien Space Bats, but:
Rather than hold a Battle of Britain, Hitler negotiates peace with France and the Netherlands as follows:
1: France will cede Alsace-Lorraine back to Germany, Roussillon and Frence Morrocco to Spain, and Nice, Savoy, and Corsica to Italy. France shall be compensated with Walloonia, Belgian Congo, and the French (but not Romansch) speaking parts of Switzerland come Operation Tannenbaum. In addition, Germany reserves the right to lease seaports and build and run millitary airstrips on French soil for the remaining durration of hostilities.
2: The Netherlands and Flanders will hold plebecites as to whether they will merge together, join the Reich, or remain independent.
3: The Netherlands and France will sell their Far Eastern posessions to Japan (Except for Pondicherry) and accept payment in either yen (to be redeemed for hard currency after the U.S. comes to the table) or durable goods.
This makes it far easier for Japan to ignore U.S. diplomatic complaints. When the Japanese attack and blockade Vladivostok during Barbarossa, making Lend-Lease to the Soviet Union more problematic, Roosevelt pushes for a declaration of war anyway, without Pearl Harbor...