An anonymous person on Taiwan said that after U.S. Vice President Harris announced the "US Pacific Islands National Strategy", he held joint exercises with the United States, Japan and other countries in the waters near Palau, and the United States also invited the Taiwan authori

Palau is one of the only 14 "diplomatic countries" left by the Taiwan authorities, and the contact between the two sides is also very frequent. According to Global Network on July 22, Taiwan's "Coast Guard Administration" recently dispatched the "Tainan ship" to go directly to Palau from its Tainan station for confidential missions. However, when it turned off the ship automatic identification system , the voyage was recorded by the " ship news network " in mainland China.

"Tainan Ship"'s confidential mission this time may not be confidential. An anonymous person on Taiwan said that after U.S. Vice President Harris announced the "US Pacific Islands National Strategy", it held joint exercises with the United States, Japan and other countries in the waters near Palau, and the United States also invited the Taiwan authorities to participate. So the Taiwan authorities sent the "Tainan Ship" to Palau to participate in the exercise to show the importance of Taiwan in the United States Indo-Pacific Strategy .

"Tainan Ship" is a 2,000-ton patrol ship, mainly responsible for maritime anti-smuggling, shipwreck rescue and other tasks. According to information from the "Ship News Network", the "Tainan Ship" set off on July 12 and arrived at the target location on July 16. Taiwanese media reported that after querying the website, the entire journey of the "Tainan Ship" was disclosed and is currently returning toward Kaohsiung at a speed of 13.41 knots. This can be used to calculate the date of the "Tainan Ship" returning to Taiwan, which is around the 24th to 25th.

Although the mainland has always firmly opposed the United States and Taiwan, any form of contact, military contact is even more sensitive. However, the "Tainan Ship" has a weak military attribute. The Taiwan authorities have also signed a cooperation agreement with Palau, Nauru , Marshall , and three "diplomatic diplomatic countries".

When general ships sail, they will turn on the automatic identification system and send signals to surrounding ships, base stations, satellites and other equipment, mark their own locations to avoid accidents such as ship collisions. However, for the Taiwan authorities, such actions still need to be kept confidential and cannot be informed by the outside world. Therefore, the voyage of the "Tainan Ship" will be kept confidential and the automatic identification system on the "Tainan Ship" will inevitably be turned off.

"Tainan Ship" has indeed achieved some results. Taiwanese media reported on July 21 that after the automatic identification system was closed, many well-known international ship track websites could not find out the tracks of the "Tainan Ship" after its departure. However, this confidentiality measure is ineffective for mainland China, and the "Ship News Network" fully demonstrates the voyage trend of the "Tainan Ship". Just enter the MMSI number 416445000 of the "Tainan Ship" on this website and clearly display the track of his trip to Palau.

On the island military analysts believe that the reason for this situation is that the Beidou global satellite navigation system in mainland China plays a crucial role because Beidou satellite navigation system has the most advanced "passive positioning" capabilities. Taiwanese media said that even if the Taiwan warship such as the "Tainan Ship" will not have much effect when closing the ship's automatic return system. Under the strict monitoring of Beidou system , the "Tainan Ship" has nowhere to hide. Judging from the current situation, the mainland has mastered the voyage of the "Tainan Ship" throughout the journey.

It is reported that the Beidou system is a global satellite navigation system independently developed by China. It can provide users with high-precision positioning, navigation and other services on a global scale, and the positioning accuracy can reach the centimeter level. The analyst suggested that the Taiwan authorities should do their best to crack the passive positioning capabilities implemented by the Beidou satellite navigation system. Otherwise, any active US military equipment purchased by the Taiwan authorities may be exposed due to the Beidou satellite's reconnaissance. At present, only four countries in the world have global satellite systems. It is a dream that the Taiwan authorities want to crack the passive positioning capabilities of Beidou .

"Ship News Network" announced the trajectory of the "Tainan Ship", which in a sense was a disguised warning to the Taiwan authorities, and their every move was under the control of mainland China. Therefore, I advise the Taiwan authorities not to be smart, otherwise they will eventually suffer the consequences.