The Department of Defense proposes the development of a portion of Fort Meade (referred to as "Site M") as an operational complex and to construct and operate consolidated facilities to meet the National Security Agency's (NSA) continually evolving requirements and for Intelligence Community use. The purpose of the Proposed Action is to provide facilities that are fully-supportive of the Intelligence Community's mission. The need for the action is to consolidate multiple agencies' efforts to ensure capabilities for current and future mission accomplishments as directed by Congress and the President. The EIS will consider three alternative development options, in which total build-out could reach 5.8 million square feet, and the No Action Alternative.