Diaspora churches are positioned to have a tremendous capacity for missions as they practice their faith in the Western world, yet why do they fail to develop effective strategies to break out of their inwardly locked ministries? Addressing this question, Dr. Mehari Tedla Korcho offers a thorough examination of Ethiopian diaspora churches in the United States, encompassing their historical, sociological, and missiological aspects. Drawing attention to the relatively overlooked nature of the 1.5 diaspora generation, those who came to the United States as children, he explores the missional potential of mobilizing the intergenerational context of Ethiopian diaspora church communities. Outlining a familiar narrative found in many diaspora churches, Dr. Korcho provides comprehensive, strategic recommendations for helping the first, second, and 1.5 generations of these communities engage in missions together. This work offers a fresh perspective to the field of diaspora mission studies through expounding the prospective impact of mission by the diaspora and the challenges faced in establishing missional partnerships.