Among the world's military air arms, United States Marine Corps Aviation occupies a unique tactical niche. As the air component of a combined-arms expeditionary force, it exists primarily to support Marine combat forces on the ground in their amphibious assault mission. From the Banana Wars of the 1920s to the present day War on Terror, Marine aviation has undergone a lengthy fine-tuning process not only in terms of warfare doctrines and tactics, but also in the types of aircraft needed to accomplish the mission. This comprehensive survey provides the history, technical specifications, drawings, and photographs of every type of fixed and rotary-wing aircraft used by Marine Air from its origins prior to World War I up to current operations.