Group 1 - The article highlights the military parade showcasing various advanced weaponry and defense capabilities [6][7][9] - The presence of hypersonic missiles and nuclear missile units indicates a focus on modern warfare technologies [6][11] - The inclusion of unmanned combat units reflects the growing trend towards automation in military operations [9][17] Group 2 - The air defense and naval capabilities are emphasized through the display of carrier-based defense systems and aerial refueling units [8][21] - Ground assault units are also featured, showcasing a comprehensive approach to land, air, and sea defense [19][21] - The overall presentation aims to demonstrate national defense strength and technological advancements in military hardware [6][19]

Group 1 - The event commemorated the 80th anniversary of the victory in the Chinese People's Anti-Japanese War and the World Anti-Fascist War, held at Tiananmen Square in Beijing [3] - The military parade featured 23 equipment formations divided into 7 combat groups, with 3 naval combat groups showcasing shipborne air defense weaponry [2] - The showcased equipment included a layered air defense system, with shipborne laser weapons highlighted for their precision and sustained strike capabilities, referred to as the "blade of light" for new naval combat rules [5]