History 3 World War, 1914-1918 African American 2 African American physicians 2 African American troops 2 Armed Forces 2 History, 20th Century 2 more ... Medical care 2 Military Medicine 2 Military participation 2 Participation, African American 2 Physicians 2 history 2 African Americans 1 Black or African American 1 Chiens 1 Chiens de travail 1 Dogs 1 Guerre mondiale, 1914-1918 1 Histoire 1 Utilisation militaire 1 War use 1 Working dogs 1 World War I 1 World War I. 1 less ...