The Korean War was the first time that African-American troops served in entirely racially-integrated units in American history. Before 1948, when President Harry S. Truman signed an executive order officially integrating the US Armed Forces, African-Americans had traditionally served in segregated units, which were generally led by white officers. While many African-Americans during the Korean War still served in predominantly-, if not entirely, African-American units, a fair number served alongside their European-American, Asian-American, , Latino,Native American, and Pacific Islander counter-parts. It would be during the Viet-Nam War that racial integration throughout the whole of the American Armed Forces would really be seen.