The Blood-Crips rivalry is an ongoing gang war between the Bloods and Crips, two African-American street gangs that operate around the Los Angeles area. Beginning with the separation of the Piru Street Families from the Crips, the war has cost hundreds of lives.
The Bloods and Crips were rival gangs ever since the Piru Street Families departed the Crips to form a "Bloods Alliance" after warfare with the Compton Crips. The wars began in the 1970s, with Bloods and Crips committing murders in the form of drive-bys and cleaning out crack houses. Warfare was mainly fought in Compton, which is the disputed central territory of both gangs. In the 1990s, warfare was at its height, but it eventually calmed down, although warfare continues today.