I don't envy the Administration's situation. The Mess will be complete when Germany invades the SU. The Reich will have nothing to do with Fu Manchu could potentially reach the Pan-Asian Empire through Siberia (good luck maintaining those those supply lines
) on day. Most reasonable would be for Britain to accept German mastery over continental Europe and forge an alliance with both the Reich and the U.S. (as soon as they are attacked by China-Japan). There some 'small' ethical problems though... 