North Korea marks this national holiday as the day the armistice agreement pausing the three-year Korean War was signed.
After devastating bombing raids and a traumatic ground campaign, around 3 million Koreans — 10% of the overall population — were estimated to have been killed, injured, or missing.
"I shrink with horror that I cannot express in words — at this continuous slaughter of men in Korea," commander-in-chief of United Nations Command Gen. Douglas MacArthur said during a congressional hearing. "I have seen, I guess, as much blood and disaster as any living man, and it just curdled my stomach, the last time I was there."
Source: The Asia-Pacific Journal, CNN