Taiwan sends jets after 27 Chinese planes enter buffer zone

Newly commissioned upgraded F-16V fighter jets are seen at Air Force base in Chiayi in southwestern Taiwan on Nov. 18. Taiwan has deployed the most advanced version of the F-16 fighter jet in its Air Force, as the island steps up its defense capabilities in the face of continuing threats from China. (AP Photo/Johnson Lai)

TAIPEI, Taiwan — Taiwan said 27 Chinese aircraft entered its air defense buffer zone on Sunday, the latest in a long series of incursions as part of Beijing’s pressure on the self-ruled island.