各地举行国家公祭日悼念活动

Group 1 - The National Memorial Day activities held on December 13 aim to remember history, honor martyrs, cherish peace, and create a future, thereby gathering strength for national construction and the great rejuvenation of the nation [1] - Various memorial activities took place across the country, including moments of silence and recitations of the "Peace Declaration" by students at the Nanjing Massacre Memorial Hall [3] - Exhibitions at historical sites such as the Chongqing Bombing Museum and the Anhui Huainan Datong Mass Grave Education Museum provided insights into painful historical events, helping to draw strength for the future [5] Group 2 - The military conducted solemn memorial ceremonies to deeply mourn the victims of the Nanjing Massacre, expressing a commitment to remember history and uphold national sovereignty and security [8] - The Central Archives released declassified documents regarding the Soviet interrogation of the Japanese Unit 731, revealing that over 200 individuals related to the crimes were identified, with 12 war criminals ultimately being publicly tried [9]