WASHINGTON -- China has fortified its air bases in recent years with enough concrete to pave a four-lane highway from Washington to Chicago, a U.S. think tank reports, giving Beijing an advantage compared with enemy airfields in a potential conflict over Taiwan.
The People's Liberation Army has more than doubled the number of "hardened" aircraft shelters since the early 2010s, to over 800 from 370, a new report from the conservative Hudson Institute said.
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