The Sperger’s have served in Central America since 2001. This couple empowers ministers through sending them out as missionaries to surrounding countries and regions through their organization called Iberoamerican Frontier Missions Brotherhood. They have started a program called Tribe to Tribe that sends tribal missionaries to other tribes. The Spergers are deeply involved in cross cultural missions, especially to unreached people groups from Latin America to Africa and Asia with an emphasis on church planting, discipleship and orphan care.

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Equipos de Desarrollo Tierra Verde is a missions program that provides sustainable missions development in South America.