to defenders taught at war colleges

backed by 1.66 million reservists. As career naval officer Harlan Ullman explains, using the traditional three-to-one ratio of attackers to defenders taught at war colleges, the PLA would need to mobilize at least 507,000 soldiers. By extension, to cross the 106-kilometer-wide Taiwan Strait to conduct landing operations, China would need thousands of ships—far more than the current PLA Navy capabilities of 234 operating warships. However, China has long been working to mobilize its civilian infrastructure to support its military campaign. For instance, the PRC has emphasized the construction of roll-on/roll-off (RO-RO) (滾裝船) ships, which can use their power to set up ramps on docks or beaches to transport vehicles. Each RO–RO ship is estimated to carry สล็อต