Mainland China has canceled the M503 routes on the west side of the middle line of the Taiwan Strait since February, and the connection routes from west to east are opened, which means that the land route will be closer to the Taiwan Strait midline.The analysis believes that this will be blurred by the Taiwan Strait line and increase the pressure of Taiwan's air defense identification.

After the three -year period of the Taiwan election, the China Civil Aviation Administration announced on the evening of Tuesday (January 30) that the flight bias measures operating from north to south from north to south from north to south will be canceled from February 1.The M503 will also be used to connect west to Fuzhou Fujian Fuzhou and Xiamen's W122 and W123 connection routes to operate from west to east to improve the operation efficiency of the aerial operation.

After this new measure is on the road, the future Fuzhou and Xiamen flights will no longer be taken around the northern route, and the M503 route from west to east to the middle of the Taiwan Strait will not be flying from west to east.Since the M503 route is only 4.2 nautical miles (about 7.8 kilometers) from the Taiwan Strait midline, it will also significantly reduce the time of Taiwan ’s air defense warning time.

At first, the mainland unilaterally set up the M503 north -south route through the International Civil Aviation Organization (ICAO) in January 2015. At the same time, the M503 connected W121, which connects to Dongshan, Zhejiang to the west, and W122 and W123 routes.

Since the M503 route is close to the Taiwan Strait Middle Line, after the Ma Ying -jeou government protest at the time, after the cross -strait negotiation, the land side agreed to move the routes to the west of the west, and only flew from north to south.It must be opened through the communication and confirmation of relevant units on both sides of the strait.

However, after the rotation of the party in 2016, in January 2018, Beijing announced the opening of the M503 north and W121, W122, and W123 from east to west.The Spring Festival overtime charter of the two airlines of Oriental and Xiamen was approved.

The mainland cancellation of M503 routes and other measures this time once again triggered the official departments such as the Taiwan Civil Aviation Administration, the Ministry of National Defense, and the Mainland Council to protest, asking the land to stop the relevant decision.

The Minister of Communications of Taiwan Wang Guogu Wednesday (January 31) further explained that M503 is close to the Taipei Feihang Intelligence Zone, which is only 4.2 nautical miles from the Taiwan Strait.There are conflicts with military aircraft; and W122, W123 and Matsu North Beidan Airport and Golden Gate Airport are very close. If there is no parallel distance and height of the cross -strait when there is no communication flight, there will be doubts about Fei'an.

Chen Binhua, a spokesman for the Taiwan Affairs Office of the State Council of China, said at the routine press conference on Wednesday that the M503 is a civilian route. In the Shanghai Flying Intelligence Zone, this route is set up and opened to "alleviate the relevant airspace routes.Covering, ensuring aviation safety ", is also the regular work of land civil aviation airspace management without negotiation with Taiwan.

He also emphasized that the mainland and Taiwan belong to the same China. Taiwan is an indispensable part of the territory of China. There is no so -called strait midline.

Su Ziyun, director of the National Defense Strategy and Resources Research Institute of Taiwan National Defense Safety Research Institute, pointed out in an interview with Lianhe Morning Post that Beijing further canceled the flying bias west of flight, the purpose was to blur the midline of the Taiwan Strait.There have been cases of military aircraft close to the M503 flight, and in the future, Taiwan will inevitably increase the pressure of air defense recognition in Taiwan.

Wang Xinxian, a special professor of the East Asia Research Institute of Taiwan Politburo, analyzed in an interview that the M503 is located in the Shanghai Feihang Intelligence Zone, and the mainland itself can decide how to fly.Although the M503 is close to the Taipei Fei Airlines Information Zone, the two parties may negotiate on the route of routes. However, Taiwan is not a member of the ICAO and cannot coordinate through the ICAO mechanism. In addition, cross -strait communication shutdown can now only look at the mainland to implement unilateral work.

Wang Xinxian judged that Beijing intends to tell Taiwan that "there are still many tools in the toolbox."Before the new government in Taiwan on May 20, the mainland will inevitably have more pressure on Taiwan.