Tiananmen Square military parade for the 35th anniversary of the People's Republic of China which coincided with the ascendancy of Deng Xiaoping; military displays and parades on the 50th anniversary of the People's Republic of China in 1999; the Tiananmen Square self-immolation incident in 2001; military displays and parades on the 60th anniversary of the People's Republic of China in 2009, and an incident in 2013 involving a vehicle that plowed into pedestrians. The square, located in the center of the city, is readily accessible by public transport. Line 1 of the Beijing Subway has stops at Tiananmen West and Tiananmen East,
Defend Tiananmen Square Headquarters through student pickets and entered the square, demonstrating the inability of the pickets to resist the army. Once the crackdown began, the responsibilities of the pickets widened to include maintaining order during the square’s evacuation, as well as physically protecting the Defend Tiananmen Square Headquarters leaders, which facilitated the escape of Chai Ling, Feng Congde, Li Lu, and Wang Chaohua. Attempting to exercise effective authority, the Headquarters established a central location so that they could create security lines and be found easily. It is important to note that the intended use of these security lines differs between the English and