The 1931 China floods were a series of devastating floods that affected large areas of China, primarily along the Yangtze River, Yellow River, and Huai River. These floods were caused by a combination of heavy rainfall, melting snow, and the overflow of rivers, leading to widespread destruction and displacement of millions of people. The floods resulted in significant loss of life, with estimates ranging from 1 million to 4 million fatalities. Additionally, the disaster caused extensive damage to infrastructure, agriculture, and homes, leading to a humanitarian crisis that required extensive relief efforts from both the Chinese government and international organizations.