Basics:  The British should place all efforts on landing equipment in France as fast as possible.  Also, remember to hurt the Japanese whenever possible to prevent them from becoming uncontrollable in the Pacific.  Let the Americans do the dirty work against Japan, just defeat Germany.

Quangtung Surprise
By General Beutin

    Britain has a good position to hurt the Japanese early in the game if the player is daring.  Take the transport and the two infantry from India, along with the fighter, and assault Kwangtung!  I have seen this attack succeed frequently and is devestating when the Russians are not hindered in the first round and can attack Manchuria.  While your troops who make it ashore will be in trouble after the battle, it breaks some of Japan's momentum and that can be beneficial to the Russian and American players.