Sharpening the Sword of Peace - Looking Back on July 23, with the successful completion of the anchorage defense exercise, the "Northern United 2023" exercise came to a successful conclusion. Since the opening of the exercise on July 20th, the participating forces of China and Russia have joined hands in joint planning, command, and operation. They have conducted multiple exercises such as sea and air escort, deterrence and displacement, effectively testing their practical combat capabilities in distant seas and regions, and playing a positive role in improving the level of strategic cooperation between the two armies and maintaining regional peace and stability. At 9:30 am on July 20, the battle alarm suddenly sounded. In the flight preparation room of the ship Qiqihar, the helicopter captain and the tactical commander quickly put on their flying gear and rushed to the Flight deck. Detect unknown targets on the water, quickly go out and investigate! "As the commander's order came, the Z-9 helicopter quickly took off and pounced on the suspicious target. The huge airflow creates circles and ripples on the sea surface, and sunlight penetrates through the clouds, refracting sparkling waves on the sea surface, making it difficult to detect targets on the water surface. The crew adjusted their tactics in a timely manner, flexibly controlled the flight altitude, and launched a search close to the sea surface. During the ascent process, the crew continuously measures various data and selects the optimal radar startup height. Despite occasional clutter interference, the tactical commander keenly detected a small echo and determined it as an undetermined target. The captain cooperated in a tacit manner, piloting the aircraft to make steep turns and dives, approaching the target at ultra-low altitude. Subsequently, the helicopter that completed the reconnaissance mission returned smoothly. Under the seemingly calm sea surface, an attack on the sea is actually accompanied by a surge of undercurrents. At noon on July 21st, the battle alarm sounded, and a drill through a submarine threat zone in unfamiliar waters immediately began. In the battle position of Zaozhuang warship, Wang Zhijin, First sergeant, was staring at the screen, observing and analyzing various data collected by sonar, and adjusting working parameters from time to time. Detected suspicious underwater targets! "Suddenly, a sound wave line appeared on the display screen, and Wang Zhijin was instantly alert. The cunning "enemy" submarine realized that it might be discovered and took a series of tactical actions to evade the search, quickly disappearing from the screen. In the battle command room, the captain of the Zaozhuang ship quickly made a judgment based on the dynamics of the submarine, and the sonar resumed contact again. Target stable tracking! "After several battles of wits and courage, the Zaozhuang ship reported the position of the submarine to the Joint Campaign Command. Almost simultaneously, the Russian Ka-27 anti-submarine helicopter also transmitted the target's azimuth information, which perfectly matched the two. Implement a simulated strike! "The Joint Campaign Command issued a decisive attack command. A live fire drill against the sea was launched simultaneously. The 'enemy' destroyer was heavily damaged by our air force and fled south. Your formation immediately stepped forward to carry out artillery attacks and sink it. After receiving instructions from the Joint Campaign Command to the Sino Russian Maritime Operations Group Command Post, the formation quickly adjusted its formation and advanced towards the target sea area, reaching the designated position at 13:30. On the position of the Guiyang ship, the shooting commander Wang Shuo received target instructions and nervously and orderly prepared for the final shooting. Radar operator Wang Da can lock the target position, while shooting operator Li Sizhuo quickly staples shooting data. Soon, the main gun barrel began to rotate and adjust its direction. Two