![](https://cdn.mamamia.com.au/wp/wp-content/uploads/2016/03/26134614/Nanjing-1-720x547-600x456.jpg)
By China correspondent Stephen McDonell.
For many people, World War II was the crucial turning point of the 20th century – a key moment in history to be studied and remembered.
However, between Beijing and Tokyo it remains a running sore that is set to be reopened yet again this week.
![](https://cdn.mamamia.com.au/wp/wp-content/uploads/2016/03/26134614/Nanjing-1-720x547-600x456.jpg)
Japan's prime minister and emperor are both expected to apologise for atrocities committed by the country during World War II.
But in China — where Japan's imperial forces were at their most brutal — deep feelings of resentment linger, and the war remains a source of ongoing diplomatic conflict even today.