The Marine Corps is a complex, tribal organization. Although Marines pride themselves on “every Marine a rifleman,” subcultures, in particular that of fixed-wing aviation, present a challenge to the organization. Another issue that influences Corps organizational behavior is its partnership with the US Navy in amphibious operations. Gender and ethnicity changes have challenged “Old Corps” cultural norms. The first challenge was racial integration, which began in the 1950s and continues today. Another complication is gender integration, given the masculine dominance values in varied ethnic communities. There is also a potential cultural clash between part of the officer Corps and junior enlisted personnel. A more important potential issue is a cultural clash among Marines at the cutting edge of the Corps’s technological transformation, as well as cultural differences between millennials and older generations. Boot camp is designed to overcome these cultural differences and make every recruit a Marine. The Marine Corps uses its heroic, manufactured past to instill in its personnel a unique identity, that of spartan warrior dedicated to fighting and destroying the nation’s enemies. The Marine Corps must blend two cultures, both important to its political existence and self-image – that of its public warrior image and that of its growing technological reality.