Group 1 - The exhibition showcases advanced military technology and products, featuring real military scenarios and hundreds of weapon models, aimed at providing an immersive experience of national defense technology [1][3] - The event is part of the 2026 Chengdu International Aerospace and Defense Technology Exhibition, themed "One Day Military Journey, Building Dreams for National Defense" [1] - The exhibition includes various interactive experiences, such as VR simulations, allowing visitors to engage with military equipment and scenarios [2][3] Group 2 - The exhibition is a platform for showcasing Chengdu's aerospace industry, highlighting the city's capabilities in manufacturing advanced military aircraft like the J-20 and J-10 [3] - The event runs until March 3, with free admission for children under 1 meter tall and certain groups such as military personnel and firefighters [4]