The sub gun fired live ammunition. The formation advanced through the waves. Officers and soldiers quickly responded to the "enemy situation". The small boat attacked. Warships break the waves, radar hovers... In early spring, a convoy of frigates from the Southern Theater Navy formed a fleet to conduct air defense exercises in a certain sea area. "The 'enemy' aircraft entered our air defense area and were ready to fight against the air!" Upon receiving a notification of the 'enemy situation', the command post ordered enhanced reconnaissance and early warning, and the formation immediately formed an air defense formation. The radar soldier closely monitors the screen, quickly searches for targets, and transmits information to various combat units. As the "enemy" aircraft approached, the combat atmosphere in the combat room was tense, with keyboard sounds and command sounds rising one after another. The commander quickly studies and judges the battlefield situation and makes combat arrangements. However, the "enemy" aircraft constantly changes its flight posture, using actions such as steep ascents, rapid dives, and turns to evade search, while attempting to launch attacks under the cover of cloudy and rainy areas. Seeing this situation, the commander readjusted his deployment and commanded all fire units to cooperate closely to quickly construct a three-dimensional air defense fire network to intercept the target. "Found the enemy's aircraft!" After the ship's radar soldiers captured the target, they quickly reported to the command post. At one command, all types of air defense weapons were fired in echelons. Between the sea and the air, there is a rumbling sound of artillery... During the drill, the formation conducts specialized training around subjects such as low altitude reconnaissance and fire allocation, excavates the operational potential of weapons and equipment, explores collaborative methods of fire strikes, and promotes the improvement of combat effectiveness. (Liao Xinshe)