On April 5, 1933, U.S. President Franklin D. Roosevelt signed an executive order to establish the Civilian Conservation Corps. As a key part of the New Deal, this program aimed to provide work relief for single men aged 18 to 25, addressing the severe unemployment crisis during the Great Depression. It not only eased social tensions but also opened a new chapter for federal conservation efforts through organized human resources.
During its nine-year operation, the CCC employed over 2.5 million men, who participated in numerous federal projects such as reforestation, national park construction, and infrastructure safety. These projects significantly improved America's natural environment and accumulated practical experience for subsequent environmental protection and technological applications, reflecting the integration of early social engineering and resource management.


