This lecture discusses the events of June 1989 in Tiananmen Square, where unarmed citizens and students confronted the People's Liberation Army. The military advanced into Beijing from multiple directions with orders to converge on the square. The lecture details the intense conflict that unfolded, highlighting the use of armored personnel carriers, tanks, and soldiers equipped with semi-automatic weapons against the protesters. By the early morning of June 4th, the Army's mission was completed, marking a significant moment in Chinese history. The atmosphere in Beijing during this time is described, emphasizing the misty conditions that accompanied the dawn following the violent events. This lecture provides a comprehensive overview of the military's actions and the impact on the citizens involved in the protests.