Can the Japanese ITTL capture Singapore.
The Japanese ITTL are running six days behind their schedule IOTL, and at present seem to have no chance of catching up this lost time and momentum. All things being equal, even if they were able to get back on track, and advance south at the same place that they did IOTL, very unlikely. They will run out of artillery ammunition six days before they get to Singapore, and be very low on small arms ammunition as well. As is their chance of causing a British collapse, and storming down the peninsula are little to none, and once the two battle hardened devisions enter the fray, they stand a good chance of a collapse themselves. Such as the Japanese forces did in Burma after the failure of their 1944 offensive to invade India. While the British will not be able to take advantage of such a collapse in the way they did in Burma, they lack the resources to carry out especially mobile warfare in jungle conditions, that the 14th Army of OTL did. And note they were very lucky, getting to Rangoon hours before the weather broke, and the monsoon started, and thus able to supply the Army through Rangoon. Had they failed to capture Rangoon before the monsoon started, they would have been unable to supply themselves over the increasingly degraded supply lines. However the British will if the Japanese collapse, be able to get back to the Thailand border, before the monsoon breaks ITTL, and get themselves set for an advance into Thailand after the monsoon.
So any hope that the Japanese have of reaching Singapore and capturing it is basically over ITTL, and thus any hope they had of capturing Java and Sumatra, is gone too. And this will have a massive impact on the post war world, and the conduct of the war going forward. The Dutch will be able to exert some control over the DEI, for a significantly longer period, probably up until the late fifties early sixties. The British will have a very different relationship with India which will get its independence, but not again until nineteen fifty, as more time will be taken to work out the inevitability partition, with hopefully less death and destruction. Burma and Malaya will too get their independence, but again later than they did IOTL, however the dominance of the lowlanders in Burma, might be reduced. And without the occupation of Malaya and Singapore, and the formation of the Malayan Peoples Anti-Japanese Army, mostly made up of Chinese Communists. There will be significantly less motivation for the attempted communist insurgents post war, which will reduce the cost to the British government of imperial policing. And yes once the British have stabilised their position in Malaya, that wonderful old fool and former Calvary man Winston, will want to do everything possible to aid the brave Americans trapped in the Philippines. It will take all the powers of persuasion of the top military and navel men in Britain, to prevent him ordering something stupid.
RR.