Freebird
Master Sergeant
Well in reading "Bloody Shambles" and my wife's grandfather's book those promises by FDR were pretty empty - the US would of had to deploy a sizable force to counter the Japanese
Oh I don't doubt that the promises would have involved some wishful thinking! But I see no other possible explanation for the Dutch refusing to deal with the Japanese.
I am pretty sure that the US made gurantees to the Dutch as well.
Remember that in 1940 even the British had tried to appease the Japanese to some extent by shutting down the "Burma Road". In 1941 after consultations with Roosevelt the opened it up again, because there was an understanding that the Allies would work together to counter the Japanese.
even if Pearl Harbor didn't happen I could not see the US defending Dutch Territories let alone its own possessions - I think history proved that to ultimately be correct.
Actually the US { UK} did attempt to defend the Dutch territories, that was the purpose of "ABDA", and the Allied attack against the Japanese landings {Battle of the Java Sea} After the shock of Pearl Harbour though, all that could be mustered was the CA Houston and some DD's {+ British, Australian Dutch CA's CL's
I don't think that Roosevelt would have promised direct defence, more likely that the US would intervene to help defend {mainly with air naval power} in the event of a Japanese attack on the East Indies. The Dutch had a native army of about 160,000 {similar to the Philippine scouts} I believe that the planners envisioned the Dutch local ground troops would be able to defend their own territory IF the US Navy Air Force took care of the Japanese fleet. The East Indies native troops performed quite poorly, and as Parsifal mentioned, similar to the weak performance of native troops in the Philippines. {hardly surprising considering the lack of training.}
The Americans put great faith in the deterrent effect of the airpower that was based in the Phillipines, and grossly overrated the effectiveness of the filipino army in resisting the Japanese. The Americans also believed their own military assessments, which in the long run was correct, that a Japanese attack on the west would be national hari kari by the Japanese.
The assessment was reasonably good on this point though, IF the Japanese Navy were neutralized, the Japanese domination of S.E. Asia could not be maintained without supply. The problem was that the planners did not take into account the possibility of the Allied Navies Air power being beaten