We only ever talk about the third attack on Pearl Harbor

yes.

> Anyway, let’s say you launch missiles. Ok? Ships move. Ship missile defense shoots down some missiles, etc.

ships move means nothing at all, the missiles are tracking the ships with radar. missile defence shoots down some missiles yes, but usually the idea with these types of attacks is overwhealimg air defence systems with volume of fire, so you fire on the order of 30 missiles at once, and use a probabalistic attack to ensure one or two make it through

Overall, you seem to be the one that isn't very up-to-date. Missiles have been around for almost 80 years, but people are saying things are different now - maybe have a look into why. Hypersonic boost glide missiles can manouver sharply, travel at speeds of up to mach 5, have next to no radar signature, and can time their attacks and manouver such that they come at a carrier group from all angles at once. Many people in the pentagon are sounding the alarm - the Undersecretary of Defense for Research and Engineering recently said that such weapons hold carrier groups at risk, and ordered a review into how to defend against the threat. The department of defence has said several times that hypersonics are their "top priority". Just because you don't hear them besides themselves in the media doesn't mean they aren't seriously concerned, but this kind of thing naturally tends to be kept muted in order to not make it obvious if they are defenceless.

The biggest saving grace is that the current systems of this technology have on the order of 1000kms range. terrifying, but can be worked around. However, that range will inevitably increase with time.

And when did they start to ramp up the production?

But either way, even if you know where the CSG is, it can defend itself and the land-based weapons have limited range. So if you're China, the U.S. Navy can go harass your shipping lanes, and protect their own supply lines going to strategic locations.

You're proposing using capital ships--ships of which even the largest numbers had single digit numbers--to escort convoys. This takes them out of the action for any other offensive or defensive naval operation you might want to use. Instead, you'd use destroyers (of which you have hundreds) and cruisers (merely dozens). This also lets you have several escort vessels per convoy, which is superior because two ships can be in two places at once which a single ship cannot.

> By contrast, the US would attempt to interdict Japanese supply convoys by using the only tool they'd have left: submarines. Better than nothing, to be sure. But it's much more difficult for a sub to find a convoy, than it is for multiple airplanes.

... Merchant and convoy raiding by WW2 existed almost exclusively of submarines attacking convoys. The Germans did attempt using surface ships to raid convoys, but their record was absolutely abysmal, and it's pretty universally agreed among naval historians that not building those ships would have been better for Germany.

Now, in 1942, the US submarine fleet was greatly hampered by the fact that the Mark 14 torpedo was a piece of shit that didn't work, and the Bureau of Ordinance refused to countenance those claims. However, the US was historically targeting Japanese shipping with submarines the entire time, and once the Mark 14 torpedo was finally fixed, the US submarine fleet would go on to be the most successful of WW2, having sunk virtually the entire Japanese shipping fleet.

There's even more considerations that I'm not including here, but hopefully this should be enough to convince you that figuring fleet carrier numbers are not going to determine the victor of a battle for merchant shipping.

I think you're misunderstanding how these missile systems work and overestimating their ability to "lock on" - it's not a video game where they have near-perfect accuracy.

> Hypersonic boost glide missiles can manouver sharply, travel at speeds of up to mach 5, have next to no radar signature, and can time their attacks and manouver such that they come at a carrier group from all angles at once.

Launch of these missiles can be detected by U.S. space-based assets via their thermal signatures, so the CSG would probably know they are coming (obviously anything can happen in war and maybe this doesn't happen, but it's likely to be detected).

Once detected the CSG can begin evasive maneuvers - spreading out for example. These ships are pretty quick and even small course adjustments may render the missiles ineffective. While the hypersonic missiles can adjust in-flight somewhat, it's much more difficult to be accurate with them. Think about it - they're launching missiles from hundreds of miles away to hit tiny ships in a gigantic ocean at a high rate of speed and those ships can shoot some of the missiles down (or at least the research is being done) and move around. It's difficult for the missile to adjust.

Think about it like this: China launches these missiles, and they're very fast but they're detected. USN ships start immediate evasive maneuvers. They don't have much time, but the missile is so fast it also doesn't have much time to adjust. It's never "locked on" in any sense you may be thinking. So can the ships get out of the way? A near miss might as well be a miss by a million miles. It remains to be seen.

There's also something to consider that they aren't cheap, and there aren't very many of them. These aren't simple cruise missiles, and a Chinese launch of such hypersonic missiles is likely to not be a repeatable attack - even so you open the launch sites up to response from the CSG or air assets from other locations. In many war game scenarios I've read, China essentially launches all of the missiles and damages USN assets in the region, but the U.S. just brings more while also retaliating and destroying Chinese assets. A quick and violent war is the best hope that China has (maybe the U.S. will back down) - but long term it loses a war of attrition based on the chess pieces and what's on the board.

So even if China launched missiles and they were wildly successful, it's not going to end the war but at best buy China some time and a moral victory.

Overall, I highly question the ability of Chinese capabilities to effectively track and put missiles on targets. These capabilities will probably improve over time (unless the Chinese nation collapses due to economic factors) which will basically mean that the U.S. will think twice before attacking China due to a serious concern about damage to naval assets.

> The department of defence has said several times that hypersonics are their "top priority". Just because you don't hear them besides themselves in the media doesn't mean they aren't seriously concerned, but this kind of thing naturally tends to be kept muted in order to not make it obvious if they are defenceless

When you read articles about the U.S. military "sounding the alarm" I would not take that at face value.

As an aside - if you're interested in further reading the Rand Corporation and others put out some pretty fascinating in-depth discussions about topics like these.