The US will be committed to the defense of the Philippinesb but it will not send the Pacific Fleet. You see Cavite, in no way shape or form would be able to support the entire Pacific Fleet. Under the terms of the Washington Naval Treaty, the base was never improved. It would take many months to assemble a fleet train capable of supporting the Pacific Fleet so far from Pearl. Not to mention that the line would be vulnerable to attack from the Japanese Mandates.TheMarcksPlan wrote: ↑03 Nov 2019, 21:40I'd agree, assuming the U.S. is committed to fighting in the PI - i.e. that it sends the Pacific Fleet to ensure lines of communication. IRL we didn't do this until late 44; absent Midway is the U.S. really going to stick its neck out this far? Maybe if we win a Midway-type battle early in the war but we'd have been outnumbered in carriers pretty badly in later 1942. There's no guarantee that the IJN blunders into a disastrous ambush in every ATL. In non-ambush carrier battles the IJN came out slightly ahead of USN during 1942.Richard Anderson wrote:I agree, a Japanese attack on the Philippines in mid to late 1942 would have been very different from what happened. By then the Philippine divisions should have been fully manned and equipped and so should have done much better...assuming of course that MacArthur was less bone-headed than in real life too.T.A. Gardner wrote:I'd also say that here, with the US holding the PI-- there's little doubt that fully mobilized the Japanese were doomed trying to take the PI-- that they'd have less to throw at the DEI. I could see them managing to get ashore in the PI then tossing in more and more units to try and win a losing situation.
If the USN seeks a decisive fleet action around the PI in 1942 and loses badly (due to being outnumbered), that could push the timeline for naval superiority back into 1944. Seems more likely they behave similarly to OTL, with a desultory defense of the PI that costs the Japanese more time and blood but ends similarly.
The Pacific Fleet did not arrive there until late '44, because of the intervening Japanese islands that had to be captured and advance fleet bases built up, before the next leap could be taken. Don't forget that it was also a two-pronged advance that constantly kept the Japanese guessing where the next hammer blow would fall.
Would the US be outnumbered in carriers. In general terms, yes, the Japanese would have more decks. However the Hiyo & Junto were classified as auxiliary carriers, not fleet carriers, so they would not be operating with Kido Butai proper. It was only after the loss of 4 fleet carriers at Midway, that Hiyo & Junyo were reclassified as fleet carriers.