The Warlord Era (1916-1928) saw China fracture into regions controlled by military leaders after the fall of the Qing Dynasty. This period of instability and conflict weakened the central government, hindered economic development, and allowed foreign powers to expand their influence in China. The May Fourth Movement of 1919 emerged as a response to China's weak position internationally. Led by students and intellectuals, it challenged traditional values, promoted Western ideas like democracy and science, and sparked cultural changes that would shape modern China's development.