Guys
For a post 1900 POD a couple of ideas:
a) No Washington Treaty or a different one. Some way of preventing Japan feeling so threatened by the US. [Possibly they get the 10:7 ratio they wanted rather than the 10:6 one, which both powers thought left them exposed. Or a political solution to the US insistence that the defensive alliance with Britain be scrapped]. Either of those would make Japan feel more secure and not snubbed, which would give the pro-western elements much more influence against the militarists. The continuation of the alliance would mean Japan has a strong vested interest in retaining links with the west.
b) Possibly events in Russia, with a quicker Red victory over the White forces prompts the western powers to welcome the idea of a Japanese protectorate over the Trans Amur region. Basically keeping the Soviet state away from an effective Pacific presence and providing a refuge for anti-Bolshevik elements. Given the logistics the region to the west would become something of a no man's land with limited military and logistical capacity. Coupled with this would probably be a de-facto protectorate over Manchuria. It's recognised as Japan's sphere of influence in return for a similar recognition of the independence of China. As said above possibly a stronger China that also deters army adventurism.
You still have the problem of how the economy and society respond to a presumed great depression at one point or another. That hit the country very badly, especially the US market collapse and protectionism as much of Japan's exports went to the US at the time. However, if nothing else a descent into militarism would be markedly delayed so that any serious problem could possibly come too late for a clash with Germany so the democratic powers don't face simultaneously crisis. [That gives much better chances that each problem could be handled earlier and more efficiently].
Steve
For a post 1900 POD a couple of ideas:
a) No Washington Treaty or a different one. Some way of preventing Japan feeling so threatened by the US. [Possibly they get the 10:7 ratio they wanted rather than the 10:6 one, which both powers thought left them exposed. Or a political solution to the US insistence that the defensive alliance with Britain be scrapped]. Either of those would make Japan feel more secure and not snubbed, which would give the pro-western elements much more influence against the militarists. The continuation of the alliance would mean Japan has a strong vested interest in retaining links with the west.
b) Possibly events in Russia, with a quicker Red victory over the White forces prompts the western powers to welcome the idea of a Japanese protectorate over the Trans Amur region. Basically keeping the Soviet state away from an effective Pacific presence and providing a refuge for anti-Bolshevik elements. Given the logistics the region to the west would become something of a no man's land with limited military and logistical capacity. Coupled with this would probably be a de-facto protectorate over Manchuria. It's recognised as Japan's sphere of influence in return for a similar recognition of the independence of China. As said above possibly a stronger China that also deters army adventurism.
You still have the problem of how the economy and society respond to a presumed great depression at one point or another. That hit the country very badly, especially the US market collapse and protectionism as much of Japan's exports went to the US at the time. However, if nothing else a descent into militarism would be markedly delayed so that any serious problem could possibly come too late for a clash with Germany so the democratic powers don't face simultaneously crisis. [That gives much better chances that each problem could be handled earlier and more efficiently].
Steve