Hmmm. Lot of Clancy fan-wank in this thread. I’ll place my bets:
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NK invasion is a spectacular failure. Their army is old, brittle, logistically anemic, and once out in the open, a brilliant target for South Korean and American airpower.
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Seoul gets hurt, but NOWHERE near as bad as people here seem to think. First off, most of those North Korean tubes have more important targets than city streets-- namely, the South Korean positions to their south that they have to break through. It’s possible the North Koreans could decide to just sit behind the DMZ and lob shells, but that’s not their doctrine, and even that kind of attack opens up the North to devastating retaliatory strikes. My guess is, war starts, the Norks are coming south, and their artillery is going to be busy aiming at more productive targets.
That said, Seoul is a big city, and it’s going to suffer damage. I just don’t see the Norks pounding it to rubble as a strategy, for multiple reasons-- mostly because it’s a wealthy city to sack, and also because North Korean doctrine (like Soviet/Chinese doctrine) says to bypass urban areas where possible. Thus, the operational objective would be to establish a cordon around Seoul and allowing follow-on forces to “reduce” the city while the main force pushes south as fast as they can (to take out airfields, logistics nodes, and eventually, port facilities).
BTW, this isn’t conjecture-- again, this is their doctrine. They could always surprise us, but both sides have been planning this war for longer than most any poster here at the SD has been alive. There are only so many ways for them to crack this nut.
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China: I don’t see them getting involved, unless, of course, in the counterattack the ROK and US forces conquer North Korea. From day one, I can imagine the Chinese trying to pressure all parties to end the war quickly-- and in the craziest possible scenario, intervening AGAINST the North Koreans. The Chinese like having the buffer between South Korea and their border-- they will probably find more value in stabbing North Korea in the back than in supporting their attack, if in the end that allows them to keep the South away from their border.
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Japan. I don’t see them intervening unless they are attacked by North Korea. That said, I see North Korea attacking Japan on Day One. First, because they’ve always said they would-- perhaps we should take the Norks at their word? Second, because attacking Japan might get the Japanese to intervene militarily, which would create pressure on the South Koreans, Chinese and Russians. I don’t believe for a moment in 2009 that South Korea would reject Japanese aid in the event of war-- WWII memories run deep, but not THAT deep-- but the Chinese (and to a lesser extent, the Russians) would not be happy at all to have Japan flexing its muscles.
For once Japan gets involved in one war, the historical prohibition against using force is over-- making Japan that much more of a threat to China in the long run (and China always thinks in the long run).
BTW, if you want a historical parallel-- this is essentially the same strategy employed by Saddam Hussein during the 1991 war. Israel had nothing to do with the war, but by attacking Israel from the first days of the war, Saddam was gambling that Israel would have to retaliate, and the Coalition would fracture as a result. Thankfully, neither situation resulted, but the North Koreans might think that the second time is the charm.
- Nukes: I’m not 100% sure North Korea would use them, but that’s just a gut feeling. I honestly don’t see why they shouldn’t use them. FYI, they can deliver weapons by air, in addition to sea (and perhaps by submarine). Not necessarily reliably, of course, as either means can be interdicted.
I also can’t rule out their capability to use a weapon on a missile. Nothing that can hit the U.S. yet, not even Alaska or Hawaii. But certainly South Korea or Japan.
That said, I don’t see Seoul being a target-- big city, small nukes, and again, the Norks would probably want to capture Seoul as intact as possible. At the end of the day, attacking Seoul with a nuclear weapon is just as effective as attacking it conventionally-- i.e., there really is no advantage to it, and the moment the Bomb is used, U.S. nuclear retaliatory strikes are almost certain.
No, for my money, if I’m the Norks I use the Bomb against Japan. Ship, sub, air, missile-- delivery doesn’t matter, just get it onto Japanese soil. Not only will that drag the Japanese into the war-- see aforementioned benefits to that-- but it also probably paralyzes Japan as a result. One, there’s the psychological impact of a largely pacifistic society being hit with nuclear weapons again. Second, there’s the paranoia generated by such an attack-- when will the North Koreans strike again? The Norks might think that by attacking Japan, they could get the Japanese to pressure the U.S. to stop the war-- or even take their own steps to deny the U.S. use of their bases.
Good a strategy as any, as long as we’re talking madmen strategies.
That all said, the IDEAL North Korean strategy is to launch a nuke on a missile into the upper atmosphere above Japan, detonate it, and enjoy the EMP effect. I participated in a RAND wargame about ten years ago that featured this exact same scenario, and every time we ran through the game, the Norks did it every time. It just made too much sense NOT to do it. EMP takes down Japan, the international economy, military forces in South Korea, and the relatively primitive North Koreans are able to keep up the attack. That’s MY nightmare scenario.
Anyway, as far as the U.S. retaliating with nuclear weapons, of course they would. The moment North Korea uses one Bomb, there’s no longer anything preventing them from using two. You have to take the country out at that point.
The scarier scenario to me, however, is that if the North Koreans attacked conventionally, you STILL might have to nuke them. Not because the combined ROK & US forces couldn’t defeat them conventionally, but simply because the Cold War calculus didn’t disappear with the Cold War: anything worth *risking *a nuclear war over is worth fighting one.
There may not be much of a choice here, in the end. NOT defeating North Korea as quickly as possible-- even if that means using nuclear weapons preemptively-- means you leave yourself open to their own nuclear attack. And if North Korea is crazy enough to go to a war they can’t win, then they’re damn well crazy enough to use nuclear weapons.
Lousy deal, but what’s the alternative? Take a nuke hit just so we can feel better about ourselves? I don’t think so.