This entry in R. P. Hunnicutt's unrivaled 10-volume history of American armored fighting vehicles focuses on the spectrum of armored personnel carriers with a focus on the Bradley fighting vehicle (BFV). Operations in WWII indicated a need for an armored vehicle with improved protection and reliable mobility for transporting soldiers in and out of battle. To address this need, development began on full-tracked armored personnel carriers with overhead protection before WWII came to a close. Development continued into the postwar period. One result of this program was the M59 armored infantry vehicle, which was pioneered as a low-production-cost vehicle and had the added benefit of being amphibious, a quality that became required in all armored personnel carriers that succeeded it.