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... The increased number of aircraft came after the ministry reported a fall that left analysts scratching their heads about what China's military may be up to.

Taiwan didn't report any Chinese military planes that went beyond the median line and entered the zone for a week from Feb. 27 to March 5. After two were detected on March 6, the next four days had none. Such flights resumed in small numbers between Wednesday and Friday.

The drop coincided with the annual meeting of China's legislature. While such flights have fallen in the past during major events and public holidays, this year's fall was more prominent than in the past.

Analysts said the meeting could not be the sole reason behind the recent drop. Another potential factor could be a desire to calm the waters with Washington weeks before a visit by U.S. President Donald Trump. The White House has said that Trump would travel to China from March 31 to April 2, though Beijing has not officially confirmed that. ...