The earliest written records of Ryukyu can be found in ancient Chinese history. There is "Ryukyu Biography" in "Sui Shu". During the Sui Dynasty (581-617), Ryukyu was called Ryukyu. As we all know, the Qiu is a type of dragon, and China uses the dragon as a symbol. In the fifth year of Hongwu in the Ming Dynasty (1372), Ming Taizu Zhu Yuanzhang sent his envoy Yang Zai to Ryukyu with an imperial edict, which called it Ryukyu. Starting from 1383 (the early years of the Ming Dynasty), the "lords" of the three Ryukyu mountains who succeeded to the throne were required to accept the canonization of the Chinese government. They all took the initiative to "pay tribute" to the emperor of the Ming Dynasty of China, and the Ming Dynasty was also a newcomer. If they refuse, they will be "canonized" and recognized separately. In the 12th century, the three kingdoms of Shannan, Zhongshan and Shanbei appeared in the Ryukyu Islands, located in the south, central and north of the Ryukyu Islands respectively. Although the Ryukyu Kingdom changed several dynasties, it paid "tribute" to China, and China "canonized" it. This relationship lasted for more than 500 years, until Ryukyu was completely invaded and annexed by Japan and was forced to stop. Through this relationship, Ryukyu not only obtained a large amount of material supplies from China, but also developed into the general maritime foreign trade agent of China, which implemented a seclusion policy at that time. Ryukyu ships not only traveled between Naha and Fuzhou, but also went north to Japan and Korea, and south to Annan (Vietnam), Luzon (Philippines), Siam (Thailand), Aceh, Java (Indonesia), Malacca and other places. , spread throughout Southeast Asia. It can be seen from this that Ryukyu, as a vassal state, is dependent on its suzerain country, China. Naha is a subtropical city with a southern scenery. The whirling palm trees and dense betel nut trees, as well as the green and straight Ryukyu pines, colorful flowers, coupled with the azure sea and white clouds in the sky, make people feel relaxed and happy. This is the largest political, economic and cultural center in the Ryukyu Islands. Shuri Castle was built as the residence of successive Ryukyu kings, and the Shureimon Gate is the symbol of Ryukyu. In 1429 AD, King Nakayama Shobashi unified Ryukyu and made Shuri Castle the capital, which was the beginning of the Ryukyu Kingdom. Today, it was occupied by the Japanese and renamed Okinawa. Ryukyu is an unarmed country and does not have a regular army. According to the "Kuri System", the Ryukyu Palace established a royal guard named "Kuri" and a civilian military organization called "Mangiri Army" in the central and southern areas of Okinawa. The Kuri Guards, commonly known as the "Shuri Guards" among the people, are the guards directly under the jurisdiction of the Ryukyu Palace. Each "Kuli" guard has a total of more than 20 people, with the leader of Momoqin Yun as the captain, the leader of Zhudian Qinyun as the deputy captain, and the other members are all served by Chitou (a civilian in the city) from home. . And there are only twelve in total. Ryukyu¡¯s military organization is basically used to maintain public order and defend against Japanese pirates. Except for the use of these military organizations in the expedition to Amami Oshima during the era of King Shochei and King Shogen, the subsequent Ryukyu kings never used troops externally. Although it was a country, its armaments were desolate and its military equipment was extremely poor. After Satsuma invaded Ryukyu in 1609, the Satsuma clan counted Ryukyu's weapons and found that there were only 500 bows, 300 guns, 300 collars, and several knives. spear. It is reasonable for the country to be invaded and subjugated by the Japanese. Yunfeng led a squadron of Yajuan Dark Sword warriors, and with the help of Yajuan intelligence personnel lurking in Japan's Kyoto, they successfully rescued the Ryukyu King Shangtai and his son Shangdian, who were kidnapped and under house arrest, and successfully boarded the prepared ship. The merchant ship arrived at Naha Port. After temporarily settling in the countryside outside Naha Port, he sent someone to contact the remaining courtiers who were still loyal to King Shangtai. Then he sent a telegram to Liu Zhenhua to inform him that the mission was completed. He also surveyed the topography of the port and the Japanese defense situation, and prepared the young master to lead the army. Preparations for the arrival of the fleet. Possessing clairvoyant radar and extremely fast speed, the two battleships easily left the waters of Kyushu Island in Japan after successfully attacking the Sasebo naval port, and turned to sail towards the Ryukyu Islands. As for the safety of the two submarines involved in Japan's Tokyo Bay, Liu Zhenhua is not worried. The captains of the submarine are Lin Jiakai, his second uncle, and Qu Fei, the squadron leader selected from the Yaizhen Dark Sword Team. Unless their brains short-circuit at the same time, they will surface on their own and expose the target. In this era, no country has the technology and means to detect the whereabouts of these two submarines. After all, the earliest invention of sonar technology was still more than ten years later, and the technology possessed by these two diesel-electric submarines is already far ahead of this era. Looking at today's world, the French Empire, which gave up the construction of battleships in favor of developing submarines, has basically made no progress in the research and development of submarine technology. The Sasebo Military Port on the Japanese island of Kyushu is not far from the Naha Port, and the distance is less than 2,000 kilometers. After a night's sailing, the two battleships arrived at the sea surface of the main Ryukyu Island at nearly noon on the second day, and the Naha port was suddenly in sight. In the command tower of the Tengfei, Jiang Shuisheng, dressed in a straight white navy uniform, held up a telescope to see that the merchant ships in Naha Port were very busy coming in and out. It seems that the rising tide of the Yellow Sea in the past few days hasThe storm of the war and the attack on Sasebo Naval Port has not yet reached here. "Report, Captain Yun is calling." "Oh? When did this guy Yunfeng have the ability to predict the future? How did he know that we arrived today?" Xie Wenyuan, who was studying the map at the table, raised his hand and took the telegraph newspaper with a smile. Not forgetting to make a few jokes. "Haha, this guy won't send us three or five telegrams one day to urge us. I guess we didn't encounter any obstacles on this mission. I don't think it was enough! Lao Xie, look at the telegrams quickly to see if he is urging us again. " Jiang Shuisheng smiled and put down the telescope in his hand. He was in a good mood. In this expedition, he relied on the strength of the ship and the power of the gun to crush the Japanese devils without any temper. Who should be the commander of this fleet? Everyone will feel satisfied and proud of the spring breeze. After Xie Wenyuan read the telegram, he raised his head and said to Jiang Shuisheng: "Hey, this guy is really capable of doing things. Just a few days after arriving in Naha, he has already secretly contacted nearly 10,000 of King Shangtai's former subordinates, planning to attack the Japanese nation in Naha in the near future. The defenders launched an attack. If we hadn't arrived today, this guy was going to let the Tengjiao turn around and give them military support. " "Good guy, luckily we arrived in time, otherwise this achievement would have been lost. Guodong was snatched away. Hurry up and send the telegram to Zhenhua. I will order the soldiers to prepare for war. Haha, now I can beat the little Japanese hard again! " The thought of being able to crush the Japanese little Japanese again! Armed, Captain Jiang Shuisheng, who had developed a strong admiration for the powerful firepower of the fleet's cannons, already felt his blood boiling all over. Xie Wenyuan was quickly urged to report to Liu Zhenhua, who was already busy issuing combat preparation orders. Liu Zhenhua, who was chatting with several Beiyang naval officers over tea, was secretly called out of the cabin by Xie Wenyuan. After reading the telegram from Yunfeng, he thought for a moment. The defense capabilities of Naha Port were comparable to those of Sasebo Military Port. There is a huge difference, but there is no need to pay too much attention to it. He whispered: "Return the call and order Yunfeng to immediately send out a reconnaissance team to provide the battleship with the location of the garrison barracks and coastal defense forts at Naha Port, and agree on the attack time. Wait until the artillery fire from Tengfei and Tengyun stops attacking. After the telegram is sent to confirm, the Dark Sword team will quickly control the Naha port to avoid accidental damage. " "In addition, tell Yunfeng that King Shangtai will gather his loyal troops and wait for us to land and dock, and they will seize the weapons. The weapons and equipment of the Japanese soldiers are sent to the Ryukyu people to capture the city of Naha! Well, that's it, execute it immediately!" "Yes." Xie Wenyuan raised his hand in salute and trotted away. Liu Zhenhua turned around and stepped into the cabin, smiling and continuing to chat with several naval officers. In order to enhance the friendship between the two parties, we will work hard for the next recruitment plan.