On the eve of the Speaker of the House of Representatives McCarthy and Taiwan Cai Yingwen, nine military planes in mainland China flew over the central line.

According to the Taiwan United Daily News on Tuesday (April 4), the Ministry of National Defense said that on Monday (3rd) from 6 am to Tuesday (4th) at 6 am, the Taiwanese military seized the mainland in the mainland.Twenty military planes, of which the midline of the Pistal Strait and its extension lines entered nine air domains in the Southwest, and three mainland warships continued to move around the Taiwan Strait.

The schematic diagram released by the Ministry of National Defense shows that the Taiwan military has discovered a BZK-005 and seven secondary-16 anti-submarine aircraft in one BZK-005, seven times, and its extension lines in the cross Strait and its extension line.The Ministry of National Defense said that the Taiwan Army used the task aircraft, ships and shore missile systems to closely monitor and respond.

According to Reuters, McCarthy's office announced in a statement on Monday that McCarthy will talk to Tsai Ing-wen on Wednesday in the Ronald Reagan Presidential Library in Siber Valley, California.This will be the first time in Taiwan to meet with the House of Representatives in the United States. Mainland China said that this move will be a provocation.

Tsai Ing -wen launched the "Democratic Partner's Spiritual Journey" on March 29. During the visit and return journey of the diplomatic relations, it passed the United States New York and Los Angeles.The statement said that Tsai Ing -wen would stay in California at the return journey and meet with McCarthy.

Zhu Fenglian, a spokesman for the Taiwan Affairs Office of Mainland China, warned on the day of Cai Yingwen that if Tsai Ing -wen has contact with McCarthy, the mainland "will take measures to fight back."Officials in the Chinese Embassy in Washington also "urged the United States not to continue playing fire on Taiwan."