Gao Jingshi's words contained a lot of information, and he mainly mentioned two things. One was that if there was a big gap in Jinghua's funds, he was prepared to develop the Sado Gold Mine; the other was that he would take advantage of the huge situation facing the Hojo family. Crisis left half of the Miura Peninsula to be leased.
The Sado Gold Mine is the earliest alternative large gold mine discovered in Japan after the Kai gold was "exhausted" during the Takeda Katsuyori period. It was one of the three largest gold mountains in Japan during the Tokugawa shogunate period, accounting for half of Japan's output. It was mined for four hundred years until the 21st century in 1989 when it was depleted and mined.
However, this is not the primary reason why Gao Pragmatic decided to build the Sado Gold Mine, because if you want to compare the reserves, grade, and mining difficulty, the Sado Gold Mine is actually not as good as Hisikari Gold Mine.
The Hisikari gold mine is located about 45 kilometers northeast of Kagoshima City in southern Kyushu, Japan. It is in the northeast of the Northern Satsuma region and currently belongs to the border area between Satsuma and Osumi. One part belongs to Satsuma and the other part belongs to Osumi.
Of course, both Satsuma and Osumi are the territory of the Shimadzu family. It should be very convenient for Jinghua or the Sea Trade Alliance to "discover" this high-grade gold mine that was originally discovered around 1750. However, there were two major problems with the gold mine that led Gao to prepare to hide it in the snow first.
One is from political and military considerations. At first glance, the Shimazu family is now closely aligned with the Sea Trade Alliance, and they even do not hesitate to explicitly claim that they are descendants of the Qin Dynasty. However, judging from the performance of the Shimadzu family after Toyotomi Hideyoshi asked the Shimadzu family to follow him in sending troops to Kanto, it can be seen that they are still engaging in double speculation in accordance with the "tradition" of Warring States Japan.
Although this kind of pragmatic approach is not incomprehensible, understanding is understanding and prevention is prevention. Since the Shimadzu family does not dare to devote themselves wholeheartedly to the Maritime Trade Alliance camp and draw a clear line with Toyotomi Hideyoshi, then the high pragmatism will naturally not be careless. Trust them without reservation with anything.
What's more, Gao Pragmatic's method of controlling the Shimadzu family is to start with economic penetration first, and then consider military penetration later. It is still in the economic penetration stage, and there is not much pressure on the Shimadzu family from the military side - the maritime power is of course suppressive, but The Shimazu family at this moment is not the Satsuma Domain after the Meiji Restoration. The navy is not their forte, but the army is their strength.
Under such circumstances, since Gao Pragmatic did not station army troops at the Shimazu family, how could he dare to discover such a large gold mine without any fuss? If the Shimadzu family gets interested in the money and decides to dig it themselves instead of "cooperating", then it's better to be pragmatic and send troops to fight the Shimadzu family now, right? If we do that, all previous Japanese plans will basically have to be overturned and restarted.
But political and military reasons are only part of the reason. The bigger reason is the problem of the gold mine itself. Although the Linggao Gold Mine is a large gold mine, it has continued to be mined during the high pragmatic period. It not only has huge reserves, but also has extremely high grades. However, this "huge reserves and extremely high grade" is all based on high-tech mining levels. Word.
In fact, although the Japanese discovered gold mines in the Hisikari area in 1750, they only conducted exploration and small-scale mining intermittently thereafter. To be precise, they were limited to mining upper ores with low grade above an altitude of 230m. In 1952, due to unsatisfactory conditions of the veins, exploration was stopped.
In fact, no basic regional survey was conducted in this area before the mid-1970s. Later, it was only after many geologists from Sumitomo Corporation analyzed the regional mineralization geological background that they determined that the Beisa area was rich in gold deposits. In this area, there may be hidden gold deposits under the Pleistocene volcanic rocks, so it is recommended to use advanced methods for exploration.
Against this background, from 1975 to 1977, the Japan Metal Mining Corporation carried out a regional geological survey in the Kitakusa Ikushikino area, and the selected working area was 900 square kilometers. A gravity survey was conducted throughout the region in 1975, and a regional geological survey was conducted from 1976 to 1977, finally identifying the main geological structures.
In 1978, based on the regional geological survey and gravity survey, a regional electrical sounding and airborne electromagnetic survey of the Xuan Lenberg arrangement was carried out in the Dakou-Ryoga area (high gravity area). The results showed that the upper and lower parts are high-resistance layers. A three-layer structure of high-low-high with a low-resistance layer in the middle.
After more than ten years of detailed investigation, by the end of 1985, Sumitomo Mining Company summarized the existing data and finally came to the following understanding:
First, the volcanic rocks in this area were originally thought to belong to the Miocene Epoch, but the K-Ar dating method found that they should be Pleistocene Epoch;
Secondly, K-Ar analysis of adolite-containing ores confirms that the age of gold mineralization is 80-100 Ma);
Third, high gravity and high deep resistivity are equivalent to local uplift of the basement (Shimanto Supergroup), while low resistivity near the surface is caused by hydrothermal altered rocks (containing smectite and interlayer clay minerals near the mineralization zone) of;
Fourth, the excited polarization anomaly in the low resistivity zone is very consistent with the distribution of the main vein system. The most exciting discovery during these studies is that a geophysical combination similar to that of the deposit (induced polarization anomalies in the low resistivity zone) extends under the young volcanic rocks in the Yamada area 1.2 kilometers southwest of the main deposit of the mine.
These statements may be too technical, but in the end they came to the conclusion that the Linggao deposit occurs at a depth of 150 meters below the surface. The main minerals are silver-gold ore, chalcite ore, selenium silver ore, chalcopyrite, phuian ore, Quartz, calcite, adolite, chlorite, zeolite and clay minerals, etc.
To put it more simply, the mine is good, but difficult to mine. At least for the current era and the level of technology that Jinghua possesses, at most it can only develop the upper mine, and the upper mine is neither rich in reserves nor of high grade. To describe it as tasteless and a pity to throw away, it may be more suitable.
In fact, if you think about it, why were the Great Jinshan Mountains like the Ryuga Mine not discovered until the 1980s? The reason is that both the Sado Gold Mine and the Konomai Gold Mine (located in Hokkaido) were formed 10 million years ago, but the Hisikari gold deposit is estimated to have been formed 1 million years ago.
From a geological point of view, the Linggao Gold Mine is a very new mine, so its veins are not exposed on the ground, so it is difficult to discover, and even if it is discovered, it is difficult to mine.
Now that the Hongzhimei Gold Mine has been mentioned, by the way, there are two main reasons why Gao Pragmatic does not dig it: first, the weather in Hokkaido is unfavorable for mining under the current technical conditions, and second, there are no people in Hokkaido now, Gao It is pragmatically impossible to mobilize at least 10,000 people to mine there - the cost is too high.
From this point of view, the Sado Gold Mine is currently the most suitable for pragmatic decisions. Sado Island is isolated off the northern coast of Japan's Echigo region. The current ruling daimyo is the Uesugi family - there was originally a local daimyo Honma family (Sado guardian) here, but it happened to be conquered by the Uesugi family this year (1589). .
The Uesugi family fought relatively smoothly in this battle and soon became the owners of Sado Island.
As one of the "Five Elders" after the death of Toyotomi Hideyoshi in the future, Uesugi Kagekatsu, the governor of the Uesugi family, is not weak in theory, but in Gao Jingshi's eyes, his strength is not a threat to Jinghua - anyway, Gao Jingshi only wants Sado Shima, it’s not like he wants to kill the Uesugi family.
Since they only want an island, under the sea power blockade of the Maritime Trade Alliance, the Uesugi family's land strength is nothing more than zero, not to mention that the Uesugi family has been in civil strife since the "Dragon of Echigo" Uesugi Kenshin died of excessive drinking. It has been going on for several years, and it has just settled down.
A few years ago, in order to win the Uesugi family's assistance in his decisive battle with Shibata Katsuie, Toyotomi Hideyoshi promised that the Uesugi family could "freely seize the country". However, due to the rebellion of the Shinbada family and the strong strength of Sasana Masagi, the subordinate of Shibata Katsuie, , the Uesugi family did not dare to take action, so that Toyotomi Hideyoshi was very angry later, thinking that Uesugi Kagekatsu had broken the alliance and broken the contract.
In fact, it wasn't that the Uesugi family didn't want Noto Kuni at that time, but they really didn't have the ability. Now, although the rebellion of the Shinbada family has finally been put down, Toyotomi Hideyoshi's Odawara expedition order has also been issued, and the Uesugi family has sent troops to help attack the Hojo family.
When Toyotomi Hideyoshi launched the Korean War, Uesugi Kagekatsu also sent 5,000 troops to Nagoya (the northern part of Kyushu Island, the base camp for cross-sea operations). However, he did not participate in any fierce battles. Instead, he was mainly responsible for providing troops for combat operations from within his territory. funding.
Although he was engaged in logistics and the North Korean war was a failure, Uesugi Kagekatsu still received the reward after the war and moved it to Aizu. From 900,000 shi in Echigo and Sado to 1.2 million shi in Aizu.
In any case, there was no ZTE in the Uesugi family after that, and later became Tokugawa Ieyasu's number one target for provoking trouble. All in all, the Uesugi family is a big name with a big name, but its strength is actually very limited, and it cannot threaten the Sea Trade Alliance at all.
Of course, if you really want to occupy Sado Island, you don't have to worry about the Uesugi family, but you have to worry about Toyotomi Hideyoshi's reaction - it's not that he's afraid of anything else, it's mainly because he's afraid that he will change his plan, which will ruin Gao's pragmatic plan. Don't change.
Therefore, what happened on Sado Island was just a pragmatic precaution. He would only take action if he was really short of money. Otherwise, he would not provoke Toyotomi Hideyoshi and others now.
The big thing he really mentioned was asking the Hojo family to rent half of the Miura Peninsula.
Some people may not be familiar with the Miura Peninsula, but if you say "Yokosuka", probably few people have not heard of it. When Gao Pragmatic wanted to lease the Miura Peninsula, he also went to the area that would become the Yokosuka Military Port.
The Yokosuka area was located in what was later called Tokyo Bay. Of course, even Tokyo is still called Edo, so there is no such term. The current Tokyo Bay is called "Uraga Suido", and "Ura" refers to the Ura on the Miura Peninsula.
However, the Yokosuka Military Port in later generations was divided into several areas, among which the "Hong Kong Area" was located in the north. Gao pragmatically felt that if he proposed a "Greater Yokosuka" including the Hong Kong area, since this would include most of the Miura Peninsula, it would be difficult for the Hojo family to agree.
However, at this time, there was a city at the southernmost tip of the Miura Peninsula. The city was called Misaki Castle. There was also a good port here. In later generations, it was called Misaki Port. It belonged to Miura City, Japan. This is where Komatsu is now targeting.
Misaki Castle and Misaki Port are geographically very advantageous for Jinghua. Once the fleet is stationed here, it can control Tokyo Bay to the east (Note: I will use this name from now on, after all, everyone is more familiar with it). To the west you can look after Sagami Bay.
Of course, there is a premise for this, that is, Jinghua may need to station army troops as the land defense force of Misaki Castle.
In fact, if the high-pragmatic goal is smaller, it is not impossible not to station the army, because there is a not very small island at the southernmost tip of this place, called "Misaki Castle Island".
The island is quite large, but even in later generations, the population was not large because it was not suitable for cultivation. There is a very famous scenic spot on this island called "Horse Back Rock". From this name, you know that the edges of this island are full of rocks.
The edge of the island is full of island-like rocks, and the middle is a hilly landform with a relatively high altitude and good visibility, so it is naturally suitable for defense, especially when Jinghua has sufficient maritime power.
[Note: In order to write this paragraph, I searched for aerial photography of Misaki Castle Island for a long time. According to visual inspection based on videos and photos, assuming that food is ensured by sea route, this island can garrison at least about 10,000 troops. Since the island has a hilly landscape except for the edges, theoretically there should be fresh water.
It is suitable for the fleet to be anchored in the northern hinterland of the island, that is, on the side facing Misaki Castle. In the aerial video, there is a bridge connecting here, and it is also the closest point to the peninsula. Since I really couldn't find any information, I had to make a visual inspection and found that the distance was probably about three or four kilometers. At this distance, with Jinghua's current artillery level, shore defense artillery can be set up, making it impossible to concentrate troops on the beachhead on the other side. ]
However, considering that the grain-producing area of Jinghua is too far away, it is not cost-effective if the food supply of the base depends entirely on transportation. Therefore, Gao Pragmatic only planned Castle Island as the minimum requirement. During the negotiations with the Hojo family We still have to try our best to capture half of the Miura Peninsula, or at least Misaki Castle and the surrounding areas.
In this case, Misaki Castle can serve as Kyoka's fulcrum in eastern Japan, forming a two-way control with the Shimadzu family. As for Misaki Castle Island, it can be used as a retreat place in case of a strong land attack. It can be used as a last stronghold and can definitely hold on to wait for reinforcements.
The Odawara War lasted for about half a year. If history is correct, it should have ended around July next year with Hojo Ushimasa and Uteru being required to commit seppuku and Ujinao being exiled to Mount Koya.
In other words, there is still more than half a year left. However, apart from the time it took for Gao Pangshi to send envoys, contact the Hojo family, negotiate, and hand over Misaki Castle, it can no longer be delayed casually.
After all, although this battle lasted so long, Toyotomi Hideyoshi's conquest of the Hojo family was not limited to the Odawara battle. If it was delayed for a long time and the place was captured by Toyotomi Hideyoshi or his affiliated forces in advance, it would be very embarrassing.
At this time, the night was getting darker, and Gao Pingshi also took Huang Zhiting to the study. The two discussed in front of the map for a while. Huang Zhiting conducted an analysis with a more professional tactical vision and even determined the division of defense zones, which saved Gao Pragmatic a lot of trouble.
However, after that, Huang Zhiting was a little worried and said: "If the handover of this city and island goes smoothly and there is one or two months of deployment time, the city defense and island defense issues are not serious, but there are still two points worthy of attention. .
First, if we want to ensure a stable city defense, not only the Misaki Castle there may need to be expanded, but we also need the Army Division to fortify northward and build at least two lines of defense.
I don’t know much about the combat effectiveness of the Japanese army. Assuming that their level is similar to that of the Burmese army, given the terrain of the peninsula, we need to maintain at least about 3,000 troops for defense - this is when the enemy sends 10,000 troops to attack. The premise. If the opponent sends 30,000 or more troops, we'd better ensure that 8,000 to 10,000 troops are stationed in Misaki Castle. "
Gao Pragmatic scratched his head and said: "Toyotomi Hideyoshi attacked the Hojo clan and dispatched an army of 300,000. In addition, the strength of the Japanese army... overall is definitely stronger than Myanmar."
Huang Zhiting said "Oh", looked at the map again, and thought for a while: "It doesn't matter, the area in the southern part of the Miura Peninsula that the master is interested in, the narrowest point seems to be less than eight miles.
Not to mention that Toyotomi Hideyoshi would not be able to attack a Misaki Castle with an army of 300,000 people. Even if he did come, the troops would not be spread out, and only that few people could be invested.
Our army occupies this hilly mountain (she doesn’t know the name of the mountain, and it will be called Fortress Mountain in later generations). The plain to the west can be blocked by the fleet on one side and guarded or intimidated by troops on the mountain at the other. The coastal plain area in the east is smaller and easier to defend. .
It seems that the enemy can only forcefully remove the stronghold on the mountain. Under the premise that our army has the superiority in firepower, this level of difficulty... would be very difficult for me to take command of, and we would have to pay for it with human lives. Therefore, although this mountain is not big, it cannot be replaced without 20,000 corpses. "
Gao pragmatic smiled and said: "The first line of defense will lose 20,000 people. I think Toyotomi Hideyoshi may not be happy."
Huang Zhiting did not answer, but talked about the second line of defense, pointing to the "gap" on the peninsula later named "Kotsunayo Bay", and said: "This is not far from Misaki Castle and is the last in the outer city area. A field defense line is only about five miles wide, and is surrounded by dense forests to the west. Regardless of whether there are mountains or not, it should be easy to defend. To the east is a plain, or perhaps a lot of fields, which is generally the easiest place for a decisive battle to break out... "
Gao pragmatic raised his eyebrows slightly, but before he could speak, Huang Zhiting already chuckled: "But at this distance, the naval guns can almost cover the entire area. If someone really wants to fight a decisive battle with our army here, I suggest them Find some monks and Taoist priests in advance and prepare to perform rituals."
Gao Pragmatic laughed loudly, and after a long time he nodded and said: "In that case, I will send someone to notify the fleet in Japan tomorrow, and ask them to go to Kanto and get in touch with the Hojo family after 'inspecting' Kyushu Island."
Huang Zhiting nodded and reminded: "Since the master has decided, I won't say anything more. However, the master had better make preparations for Master Lu first, so as not to be in a hurry. In addition, Japan is a bit far away. If there is any unexpected situation, it may be difficult to request instructions and receive orders in time. I suggest that it is best to choose a person in charge who has an overall view of the situation and give him a certain degree of autonomy to facilitate his actions. "
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