The US Mennonite Sect is a religious group that is closely related to the AMISH, who are known for their traditional lifestyle and plain dress. The US Mennonite Sect is a Christian denomination that follows the teachings of Menno Simons, a Dutch theologian from the 16th century. They are known for their commitment to non-violence, pacifism, and service to others. They also practice adult baptism and have a strong emphasis on community and family life.