Yang-ti decided to use force to crusade because he couldn't make a move. In the sixth year of the Great Cause (6 10), Emperor Yang Di sent Wu Benlang and court doctors Chen Leng and Jang Jin to lead more than 10,000 soldiers across the sea from Yi 'an (now Chaoyang, Guangdong), first to Gaohuayu (now Huayu and Dayu in Penghu Islands), then to Gaohuayu the next day and Yuhuan the next day. When Liu first saw the boat, he thought it was a business trip and went to the army to do trade. This shows that there were commercial exchanges between the mainland and refugees at that time. After Chen Ling led the troops ashore, he asked the local chief Huan Si to be eager to surrender and was rejected. Therefore, Sui Jun "captured thousands of men and women, and then sent the army back".
At present, most scholars believe that the exile place of Sui Dynasty is Taiwan Province Province, mainly for two reasons: First, from the geographical location and distance, the exile place of Sui Shu should be Taiwan Province Province, not Ryukyu today. Because Taiwan Province Province is very close to Fujian, it can be seen from the coast of Fujian on sunny days. "Sui Shu" has flowed to the legend of this country; "In the Spring and Autumn Period, the sky was high and the clouds were light, and the east was like smoke." Second, in terms of local conditions and customs, Sui Shu's exile should also be Taiwan Province Province, not Ryukyu today. The local customs contained in Sui Shu's Biography of Liu Qiu are mostly consistent with the customs of Taiwan Province Province described by the Qing Dynasty, but inconsistent with the customs of Ryukyu in the Record of Making Ryukyu.