Commentary Over the last week or so, Beijing sent about 150 military aircraft—bombers, fighters, reconnaissance, and anti-submarine planes—through Taiwan’s air defense identification zone (ADIZ). An ADIZ is not legally Taiwan’s territory, but Taipei does claim authority to monitor and control what flies through it. Chinese People’s Liberation Army (PLA) planes regularly intrude on Taiwan’s ADIZ, but this time the numbers were more than ever before. And the mix of aircraft was similar to what one would use in combat operations. What to make of all this? Is war over Taiwan imminent or is it just a tempest in a teapot? War in the near-term is unlikely. However, there are several reasons the incursions need to be taken very seriously. Improving PLA Capabilities Xi Jinping means it when he says he will seize Taiwan—either via intimidation or outright force. The PLA, in fact, had its marching orders for decades—long before Xi …