This civil protest was marred by the death thousands of protesters when Chinese military open fire crowds of people

Tiananmen Square protests

Explanation:

Tiananmen Square was a black eye for China as it tried to facilitate a more open government and economy.

In 1989 there was a series of civil and student protests in mainland China. Party corruption, restrictions on political participation and inflation were some of the things that lead to the protests. Exactly on June 4th 1989, troops with automatic rfiles and tanks fired at the demostrators trying to block the advance of the soldiers towards Tiananmen Square, this sad episode of Chinese history is commonly known in the West as The Tiananmen Square Masacre.