MBA Professional ReportThe goal in this project was to research and write an historical overview of the Department of Defense (DoD) Acquisition policy toward preference in a particular contract type. Major milestones and representative case studies were reviewed that challenge the current acquisition policy in regard to the type of contract selected for major defense weapon systems. In this project, historical and analytical accounts of the defense acquisition process are provided for major weapon systems from 1947 to present. Significant changes were examined to acquisition policies to show any possible trends. Major studies were conducted to determine what factors contribute to policy changes associated with noteworthy cases involving major weapon systems. By highlighting trends and making insightful observations, we hope to provide acquisition professionals who work with major weapon systems with greater perspective and context on the debate over the most appropriate contract type for use in major weapon systems.http://archive.org/details/theevolutionofco1094517445Lieutenant, United States NavyApproved for public release; distribution is unlimited