Core Viewpoint - The recent military parade on September 3 showcased four types of naval air defense weapons, highlighting the comprehensive defense capabilities of the Chinese navy against various incoming threats [1][2]. Group 1: Naval Air Defense Systems - The four showcased naval air defense systems include HHQ-9C, HQ-16C, a short-range defense system, and the LY-1 naval laser weapon, forming a layered air defense network [1][2]. - The HHQ-9C missile is designed to counter high-altitude, high-speed threats such as ballistic missiles, enhancing maritime missile defense efficiency [1]. - The HQ-16C, a medium-range missile, complements the HHQ-9C by allowing for a high-low pairing, effectively intercepting subsonic and even supersonic anti-ship cruise missiles [2]. Group 2: Laser Weapon Technology - The LY-1 naval laser weapon is a significant highlight, capable of intercepting unmanned aerial vehicles and anti-ship missiles with a low cost per interception [2]. - The LY-1 laser weapon can eliminate the time lag between target locking and firing, improving interception accuracy and effectiveness [2][3]. - This laser weapon can also damage the optical sensors of enemy equipment, fundamentally altering naval combat rules [3].