Chen Hushan finally reunites with his older brother, whose remains were placed in a box covered in China's red five-star flag.[Photo provided to China Daily]

"As a CPV soldier's daughter, I have watched many films about the war. I was very excited to watch this documentary, and was really moved when I saw the bravery of our older generation to safeguard world peace. Although I have never participated in the war, I was born to keep their spirit in my heart," she adds.

Yuan Xinwen, director of People's Daily's literature and art department, believes the CPV soldiers' spirit forged in the war is still very important in the modern era. "The spirit is our valuable treasure, which comes from the sacrifices of several hundred thousand soldiers. It is also an important enlightenment for us when we analyze the war. The spirit will not become old even if the war ended dozens of years ago," Yuan says.

"It still encourages Chinese people at present. For example, Chinese people have shown similar spirit in their joint efforts to fight against COVID-19," Yuan adds.

The documentary crew spent two months interviewing 92 CPV veterans and experts in China, and 21 foreign veterans who took part in the war in the United States, Russia and the United Kingdom and also scholars. Wei Jikui, general director of this documentary, says they used a large amount of documents from the National Archives Administration of China and the Military Museum of the Chinese People's Revolution, and reenacted some scenes of the war at the Hengdian World Studios, the country's largest film-and-television shooting base.

Zhang Tongdao, a professor of documentary studies at Beijing Normal University, says: "We need to reflect on the war from the angle of all human beings.

"The title of the documentary is For the Peace. I like it very much," Zhang says. "When we reflect on the war 70 years later, we need to consider what we fought for. Of course, we hoped for victory, but victory is not the ultimate goal. Our goal is peace, the peace that enables people of different races, countries and regions to live happily and peacefully."