1) What were the positions of the Australian and New Zealand governments on continuing the Anglo-Japanese alliance in the early 1920s, pro or con ?
(I am certain the Dominions opposed the Japanese proposed declaration of racial equality at Versailles, mainly in order to maintain racially discriminatory immigration controls, but I have heard some contradictory things about whether the Australians disliked the Japanese alliance or saw it as useful).
2) *If* the Australians thought that the Anglo-Japanese alliance was the best way to safely handle Japan, how would the United States have reacted to Commonwealth counter-proposal that the price of terminating the Anglo-Japanese alliance would be the substitution of an American naval cooperation agreement with Britain, Australia, New Zealand and Canada covering the Pacific from Singapore to Sydney to San Francisco.
3) What's the plausibility of a more segmented employment of Dominion forces in WWII? For example, ANZAC troops serving the Commonwealth cause not by sending expeditionary forces to Africa or Europe but to relieve British and Indian Army troops serving in the triangle from the Chagos islands Maldives, to Burma, Hong Kong to the south Pacific.