1/30/42 and 1/31/42
Molucca Straits & Tarakan: The Japanese TFs sighted on the 29th are indeed an amphibous force heading into Allied territory - the destination is Tarakan. This sets up the Allied CV ambush perfectly since Enterprise, Lexington, and CVL Hermes had been ordered to take station just five hexes southeast (see map below). Nothing happens on the 30th except a few minor skirmishes with PT boats, but on the 31st the Allied flattops launch morning and evening raids:
AM: 6 Buffalo, 19 F3F, 11 Swordfish, 68 SBD and 30 TBD engage a massive AK/DD TF hitting at least 13 of the transports. Two were hit by torpedoes launched by the Swordfish (Well done, Hermes!) and went down. No Allied aircraft were lost.
PM: 12 Buffalo, 19 F3F, 49 SBD and 30 TBD return to take on a stout surface combat TF, hiting CL Isuze once (size of bomb not noted), CA Nachi once (a 1000-pounder), CL Natori twice (500-pounders), and CL Kinu once (1000-pounder). One SBD was lost to flak.
Impact: The Japs are landing an amphibious force at Tarakan and should soon take the base. Will Miller withdraw his ships or remain in place? Should the Allied carriers remain for another strike? I decided not to due to the location of the KB, which is currently near Cairns. If - big IF - Miller sent the KB at flank speed toward the Celebes while the Allied carriers tarried, the Jap carriers might catch them (we're playing two-day turns). I can't take that chance, so I've ordered the flattops to withdraw to Batavia. The PoW TF will steam to Tarakan on a surface combat assignment, as will two other combat TFs (one led by Boise and Marblehead) hoping to find some lingering Jap shipping. These Allied forces will then withdraw toward Batavia, too.
If the KB comes this way I think the Allied carriers will have enough head start to make good their escape. In the event of such a radical move by the KB, the Allied cruiser force that just fled south from Townsville will return to contest the immenent landings at Port Moresby. If the KB remains near PM then the Allied carriers, reinforced by an RN CV south of Sumatra, will continue to patrol the DEI. Sooner or later, Miller will have to commit the KB to the DEI.
The success of the ambush is due, in part, to luck: guessing correctly that this was a Jap amphibious TF that might be heading into northern DEI waters. But it was also due in part to good planning (pardon my horn tooting). I've had Ent/Lex patroling these waters for more than a month, just looking for an opportunity to administer a bloody nose. Several times I nearly withdrew them out of concern for their safety. But when the KB showed up in CenPac it was clear that the DEI was safe for awhile. I think Miller sent the KB to CenPac as a decoy and then snuck them at flank speed way down into the Coral Sea. His plan worked - I didn't know the KB was coming that way - but it also had the unintended consequence of giving the Allies breathing room to wait long enough for an ambush opportunity to occur.
KB and SWPac: Over these two days, the KB moves NW several hundred miles from its previous position. From a point off Cookville, the KB launches a strike of 13 Kates and 25 Zeros that sink an AK fleeing Port Moresby. Meanwhile, the Japanese amphbious TF has rounded the tip of New Guinea and will soon arrive at PM.
SoPac: The Allies are desperate to reinforce Noumea, which currently has an AV of 75 with two engineering units. One US Army regiment is aboard transports at the Panama Canal (having taken a circuitous route when KB showed up at Johnston Island). I have divided 41st Infantry Division at San Diego and paid the PP to assign two of the regiments to SoPac. These are loading on transports that will be accompanied by Yorktown and Saratoga to Pago Pago. From there the Allies will send the infantry on to Noumea. The carriers are coming along to guard against AMCs or other Jap raiders.
CenPac: At the moment it seems that the coast is clear to reinforce some of the CenPac islands.

"Rats set fire to Mr. Cooper’s store in Fort Valley. No damage done." Columbus (Ga) Enquirer-Sun, October 2, 1880.