ORIGINAL: Bullwinkle58
ORIGINAL: Chickenboy
I cannot envision a way that any fuel or oil from anywhere in the DEI could be shipped back to the home islands if it's bombed enroute. N. Borneo or Palawan, combined with Cebu in the Central Philipines combines with Leyte/Samar east of there forms an impenetrable barrier over any oil shipments through the region. Morotai or Palau / Bobble-do-rag would complete the eastern border of the 'no ship' zone.
CR's still 1.5 years from kamikaze enablement, so there's really no downside to getting as high up the Philipine chain. I'd do this in preference to landing directly on those respective oil sources. Reinforcing already held islands in the Philipines is essentially a zero cost option to this opportunity. This would be my preference-accomplish the strategic goal at zero cost.
You are objectively correct that POL out of Miri is not going to happen much longer one way or the other. But there are several reasons I still think standing on Miri is the best option right now, and why the PI route is riskier:
1) Miri is recon-visible. The PI is a leap into some degree of darkness.
2) Given 1), the PI would need carriers. Even then, depending on how far north the intrusion occurred, Chez woudl have a good strategic backfield to rally a response from. Marianas?
3) The PI invasion options need to be "bigger" and thus would take longer to mount.
4) Biggest reason to go at Miri is psychological. Not to go all Nemo here, but Miri "going green" would be a huge psychological blow to Chez. As the saying goes, nothing focuses the mind like the prospect of a hanging at dawn. Loss of Miri would be a back-breaker; Japan would have to respond in a massive way. It takes a Japan which is already on its heels in reactive posture and escalates that 150%. It does it quickly, in a low-risk way for the Allies, but would require an all-in move by Japan to eject the landings. Leyte Gulf in the DEI if you will.
The PI is a slow bleed over the next 8-12 months. It might take Chez a while to grasp that his home-bound convoys are in danger once credible air forces were established in the PI. But Miri is a right to the jaw. It's unmistakeable. Sometimes CR likes to be subtle, to feint, to jab, to bleed out his opponent. But sometimes an all-in challenge is the right move, particularly when you've already prepared the gorund for it. The Sink. battle and take-down is the prep. Taking Miri is the harvest.
I'm still in favor of the insidious expansion of forces in the Cent PI theatre:
Chez has demonstrated a disinterest or unwillingness to thoroughly recon Allied axes of expansion. He is coming into the fight blinded about CR's build in supporting bases elsewhere in the DEI.
Clearly something is 'up' at Miri now and Chez is alerted to the threat here. Allied capture of this base will now require a good deal more force than it once did against an alerted opponent. Allied carriers will likely be required to support troops en route. LRCAP from LBA will be insufficient for a Miri invasion. I agree that an exploitation of the central PI would require at least transient carrier support, as would Miri, in my opinion.
However, lodgements could be secured inexpensively and-quite possibly-concealed from the prying eyes of the IJ forces, because they've not been properly dealt with by the Japanese. Allied air supply can transport some small base forces (and aviation support) to N. Borneo bases right now. A couple DB units there would be easily supported by air supply. Air transport in some LCUs if you're concerned about a counterinvasion. A couple xAKs on a one-way mission could provide supplies en masse.
Cebu in particular, with its supply production, could be a real hub for Allied expansion in this area. CR knows the distance his air transport units can fly: if they're in range of modest-range reconnaisance assets (e.g., F-4 or F-5s), they're within range of Allied transport aircraft.
Miri may be the right cross to the jaw. Quietly building the central Philipines is like waking up in the morning and finding your midsection missing. No warning, no hint it's just not there one day. Maybe some diagnostic discovery could have been done, but it's too late now. This is the more subtle and nuanced play in my book.
Chez hasn't indicated that he'd be 'knocked out' by a landed blow before now. Heck-if he can fight on without Palembang (and not put up a knock-down fight for it), why should he care about lesser (much lesser) oil centers now? He'll likely look at it as "Well, that sucked. Now what?" and fight on. Removing his midsection will make the 'fighting on' aspect that much easier for CR to exploit in the future.