Is Ryukyu Kingdom the gang led by Li Jun in Water Margin?

According to the narrative in the books "The Water Margin" and "Lu Gui Zhejiang", Song Bing and his men strode forward and went outside Suzhou, only to find that they were cheating on each other and lying in bed. His soldiers came to report to Song Xianfeng. Song Jiang read the newspaper and personally led the doctor to see a doctor. Li Jun said, "My brother has missed the deadline for returning to the army. The court saw the responsibility and feared that Zhang Zhao would return for a long time. When my brother pities Li Jun, he can leave Tong Wei and Meng Tong to take care of his younger brother. When he recovered, he went on a pilgrimage. Brother, please go to Beijing by yourself. " Sung river said, the heart has unwilling, also don't doubt, had to lead the army forward. At the urging of Mr. Zhang, Sung River had to leave Li Jun, Tong Wei and Meng Tong to join the generals in Beijing. Let's talk about Mr. Li and his three men coming to see four Bao Fei. They didn't keep their promise. The seven of them consulted on the fish farm and made a boat with all their furniture. They sailed from Taicang Port and went abroad, and later became the masters of Siam.

Siam has always been regarded as Thailand, not Ryukyu, so the Ryukyu people are not the people brought there by Li Jun in Water Margin. What's more, this is a novel, not a real history. During the Ming and Qing Dynasties, Ryukyu Kingdom was a vassal state of the Central Plains Dynasty. Zhu Yuanzhang and later rulers arranged a large number of immigrants to settle in Ryukyu. Now many people in Ryukyu (called "Okinawa" in Japan) are descendants of these immigrants. The Qing Dynasty ceded Ryukyu and Taiwan Province Province to Japan because of its defeat in the Sino-Japanese War of 1894-1895. "World War II" should have been recovered together with Taiwan Province Province, but due to historical reasons, Ryukyu was not officially recovered.