Operation Wetback was a plan to deport illegal Mexican immigrants from the United States. It was created by Joseph Swing, a retired United States Army lieutenant general and head of the United States Immigration and Naturalization Service (INS). It started in June 1954 and led by U.S. Attorney General Herbert Brownell. The operation used military planning to remove Mexican immigrants. Some people deported were American citizens. Millions of Mexicans were in the United States legally before the operation. Some came in to work with the help of United States government. Others were native to the land where they lived. Operation Wetback was planned to send them to Mexico.[1]