December 13 marks China's National Memorial Day for Nanjing Massacre Victims.
On Dec 13, 1937, Japanese troops invaded Nanjing and killed over 300,000 Chinese civilians and unarmed soldiers.
This history remains a profound national memory and a deep scar on human civilization.
On December 10, the Chinese and US militaries held a video meeting on archival cooperation.
The two sides exchanged views and agreed on a tentative cooperation plan for 2026.