Senior Colonel Shi Yi, spokesman of the Eastern Warfare Zone, said that on April 2, the Eastern Warfare Zone of the Chinese People's Liberation Army organized the Shandong aircraft carrier formation to stand in the airspace in the East China Sea to conduct drills with the sea and air forces on subjects such as ship aircraft coordination, regional air control, and sea and land strikes, focusing on the inspection of the integrated linkage between internal and external lines, three-dimensional containment and joint combat capabilities of all services and arms. (New Society)