The United States blocks China's three island chains
The first island focuses on Japan, the United States has heavy troops in Japan, with Yokota and Okinawa in the Japanese mainland as the main base group, there is the only overseas aircraft carrier base of the United States, and the Philippines recently opened military bases to the United States, which is the United States to strengthen the strength of the first island chain;
The second island chain focuses on Guam and the Mariana Islands, U.S. overseas territories, as well as naval and air base groups, which are home to B-52 super-large strategic bombers.
The third island chain focuses on the Hawaiian Islands, which are U.S. territory and home to the Pacific Command and the Pacific Fleet.
