This is a fairly detailed article well-worth reading in full, Below is a small excerpt. ABN
…the PLA had clearly studied U.S. military operations over the course of two wars against Iraq. Both operations relied on a methodical, months-long buildup of forces to uncontested bases in the region, followed by U.S. aircraft dominating the skies and then carrying out devastating attacks on the enemy’s command-and-control systems.
China’s answer was a well-funded strategy that the Pentagon refers to as “anti-access, area denial” (A2/AD), meaning it would prevent an adversary like the U.S. from being able to carry out the sort of significant military buildup it carried during the two Iraq wars. The PLA’s military plans rely on space-based and airborne surveillance and reconnaissance platforms; massive precision-guided missile arsenals; submarines; militarized man-made islands in the South China Sea; and a host of conventional air and naval forces to hold U.S. and allied bases, ports and warships in the region at risk. Because it lies only 90 miles from Taiwan, China needs only to hold U.S. forces at bay for a matter of weeks to achieve its strategic objective of capturing Taiwan.
“Whenever we war-gamed a Taiwan scenario over the years, our Blue Team routinely got its ass handed to it, because in that scenario time is a precious commodity and it plays to China’s strength in terms of proximity and capabilities,” said David Ochmanek, a senior RAND Corporation analyst and former deputy assistant secretary of defense for force development. “That kind of lopsided defeat is a visceral experience for U.S. officers on the Blue Team, and as such the war games have been a great consciousness-raising device. But the U.S. military is still not keeping pace with Chinese advances. For that reason, I don’t think we’re much better off than a decade ago when we started taking this challenge more seriously.”‘We’re going to lose fast’: U.S. Air Force held a war game that started with a Chinese biological attack