A lot of good responses, guys. Thank you very much!
I'm not saying Toyotomi can just force the eastern lords to submit with a wave of his hand, but my emphasis is the fact that, for a conventional war, Toyotomi does have massive manpower and logistics, and that Japan as a whole still has more men available.
I will discuss my take on the Invasions of Korea a bit further down. But I think you have made a good point here, and I wanted to emphasis it. Toyotomi has a lot of forces at his disposal.
These numbers will help in a conventional campaign. In Taiwan, where the Spanish had their colonies (later, not during Toyotomi's lifetime), Spanish resistance to the Dutch was based out of the forts. I see no reason why the Spanish would change their mentality to go for guerilla warfare, and I don't see why the native Philippine inhabitants must embrace a costly guerilla warfare campaign on behalf of their Spanish overlords. Most likely, the Spanish would huddle beneath their walls and cut their losses once the Japanese take over the largest fortresses. Yes, I know the walls of Manila were now made up of stone at around, but the Japanese have experience dealing with stone walls too.
Yes, I think it's likely that the Spaniards will stay on the defensive, especially given how outnumbered they will be. In reality, it may be easy enough for them to reach an accommodation with the Japanese. Toyotomi (or his advisers) considered conquering Luzon, not the entire archipelago.
Some fiefdoms to reward loyal retainers would be most welcome, but the important thing is to control the trade center. However, while both Japan and Spain want to control the trade, they both also want to trade. It's not in Japan's interests to push the Spanish out completely, so that they do not trade in Manilla anymore. They simply want that trade to occur on Japanese terms.
Even if the Japanese are completely successful, I would not be surprised if it ended in an uneasy truce--Japan controlling Luzon in the north, and the good harbor at Manilla, and the rest of the island staying in Spanish hands.
I will not say anything about the Japanese language bit since I don't know how to speak Japanese.
I think "assassin" is considered dishonorable by anyone's standards.
No one on this board will admit to knowing any Japanese. Twice now I have started Japanese conversation threads over in NPC, and both times it died quickly from lack of interest. Last time, it was really just me and LeoXiao. I know some of you speak some Japanese! Don't be so shy, people!
It would change the entire dynamic of the second half of the second millenium.
The key fact of the period 1500-1900 - the Age of Sail - was that Europeans had the broad seas to themselves. There was local small-craft activity in the Indian Ocean and Far East, and harassment from the Barbary pirates. (The Barbary pirates and Turkey, for this purpose, are practically European.)
But it was European ships which went everywhere. This dominance was achieved in large part by the default of the chief potential competitors: China and Japan.
Excellent analysis, thank you. This potentially has much bigger knock-on effects than I had thought. I wish I could see this as a flesh-out TL going far into the future. It would be very interesting. Maybe someday I'll write it...
Ah, I wasn't aware of this before. I wonder whether this might still provoke a Chinese response; AFAIK, a large part of the Chinese intervention in the Imjin War was due to China needing to preserve its status as the strongest power in the region. If the Dutch or Spanish take Taiwan, they're only marginally more prominent, but an expansionist Japan is directly a challenge to Chinese dominance.
I see where you are coming from. I agree that part of the reason China responded to the Korean invasions was because they didn't want Japan to grow too powerful, and upset the balance of power. But I think before Japan invaded Korea, they weren't seen as any sort of a threat. An invasion of Taiwan--itself an island on the periphery of the known world, to the Ming--just isn't as threatening.
To put it in European terms (which may or may not be more familiar to you, I don't know) Japan trying to conquer Korea was as threatening to China as, say, the Barbary Pirates trying to take over Italy. It would be surprising that they were trying it at all--and that they were doing well. It would be threatening, too, because if they managed to conquer it, it would destabilize central Europe and give them a springboard for expansion into HRE holdings. Japan establishing trade ports on Taiwan is like the Barbary Pirates taking over Corsica. It's surprising, and something that bears close attention. But it's not a threat to the nation itself, and also it's less of a dramatic shift in power, so it's less destabilizing.
Taking Taiwan is also a challenge directly, in a sense as well, because the Ming always derived a great deal of their income through trade with the Dutch and Spanish. Taking Taiwan is a direct challenge to that as well. So where the Ming were apathetic to the Dutch in Taiwan, I think they might not be so apathetic to Japan.
Ironically, this might help speed up the fall of the Ming Dynasty anyways. OTL, a combination of disinterested Emperors and the cost of maintaining suzerainty over a traditional tributary state (Korea) badly weakened the Ming Emperors. This is liable to be worse for both sides.
Mmm, but Japan doesn't want to supplant Spanish and Portuguese traders, it just wants to be able to tax them, to profit from that trade. That may diminish the profitability of the trade to the Ming Empire, but it's not a threat to their coffers. It just means that a trade they didn't control before anyway is now under the control of someone else.
Also, I think this is much better for the Ming overall, since they won't have the expense of a campaign in Korea. Gaining Taiwan and the Ryuukyuu islands and/or Luzon is certainly "worse" for the Japanese than gaining Korea would be. The difference is, this might actually be possible.
As Mcdo said, Taiwan is a hub for trading, plus there's a modest amount of gold, camphor, more deer than people, and lots of valuable timber.
Taiwan would not be an easy target at all. No country controlled the entire island until the Japanese in the 20th century, and it took the Japanese a decade with modern weapons and very clever manipulation of tribal rivalries to do so. What Hetalia said about the Philippines can easily apply to Taiwan. This was before the Taiwanese began assimilating to Chinese culture due to Chinese migration. The tribes were used to fighting, being nearly constantly at war with each other. Fighting was such a way of life that to become a man in many tribes, boys were required to bring back a head from a rival village. Their idea of war was to sneak up on the enemy while they weren't paying attention, which was why old Taiwanese villages were enclosed with impenetrable bamboo thickets. There was no honor in the Japanese sense-honor was coming back to the village with the heads of your enemies. The samurai would most likely find themselves beheaded in the middle of the night unless they had something valuable to trade.
You make a good case, and I'm glad to have a Taiwanese viewpoint on this. Upon further reflection, I think it is impossible for the Shogunate to establish full control over Taiwan at this period in history. I don't think anyone could have, really. But for our purposes, Japan doesn't need to. They need only to establish forts to control the trade, and to protect merchants. If the Dutch and Spanish could do that on the other side of the world, then I think the Japanese can, too.
Here's an interesting thought: historically, only a little bit later than the time period we are talking about, many Chinese men came to Taiwan from Fujian. They mostly arrived as single men, and often married local women. It created an interesting hybrid culture that only disappeared later when much larger populations arrived from China and began living lives closer to what they would have done in China.
What if Japanese men begin settling in Taiwan for the same reasons. What impact will it have on the Japanese, to have this influx of Taiwanese aboriginal cultures? More importantly, what changes for the aborigines, to have Japanese cultural influence instead of Chinese? What do you think?
That beg the question, how powerfull was the Kingdom of RyuKyu before the 'mainland lords' seize it...
It was quite wealthy, and Shuri Castle is a formidable defensive structure.
However, I think the population is just too small compared to Japan to allow them to really hold out. It's probably the only one of the three places we are talking about where Japan could exercise outright control, instead of just trading ports and forts.
In other words, while the Japanese eventually suffered from numerous conventional defeats, causing them to retreat altogether, they were also stalled and defeated by hit-and-run attacks on both land and sea various times beforehand, which severely disrupted their supply and attack routes throughout the two invasions.
Agreed. I won't speak too much on this, as the Imjin War is not really on-topic here, interesting though it is. But personally, I would put a bit more emphasis on the naval battles than you seem to be doing. The Chinese reinforcements helped a lot, but as you said, the defenders were still greatly outnumbered. I think their victories can largely be attributed to the loss of supplies and guerrilla warfare greatly reducing the combat effectiveness of the Japanese.
In other words, the Japanese advantage on land was not enough to overcome the tremendous Korean advantage on the water.