Excerpts from Books and Wikipedia
"The Peace Corps is a volunteer program run by the United States government. The stated mission of the Peace Corps includes providing technical assistance, helping people outside the United States to understand American culture, and helping Americans to understand the cultures of other countries. The work is generally related to social and economic development. Each program participant, a Peace Corps Volunteer, is an American citizen, typically with a college degree, who works abroad for a period of two years after three months of training." [Wikipedia]