Department of Defense

The United States Department of Defense was a pre-War department of the United States government. The full scope of the Department's duties are unclear, given the continued existence of the Department of War by 2077, but they were deeply involved in matters of national security.

Background
In 2069, West Tek was the single largest contractor for the United States government, its largest contract being Powered Infantry Armor Model T-51b. In light of significant advances in 2076 by the West Tek Nuclear Biological Chemical Division on the Pan-Immunity Virion Project, the United States Defense Department, in fear of international espionage, moved a team onto the site to secure and oversee the project, now dubbed the Forced Evolutionary Virus project.

Sometime after the development of the T-51 power armor, the Joint Chiefs of Staff would commission the development of X-01 power armor, with functional prototypes existing before the Great War. While X-01 never saw wide scale deployment, its prototype schematics would serve as the base for the Enclave to develop Advanced power armor into mass production in 2220.

The department worked in conjunction with the Department of Agriculture in the National Water Enhancement Initiative, developing additives to be deployed in the water systems to improve the well-being of United States citizens.

They were also involved in the development of the Appalachian Automated Launch System, a system of automated nuclear missile silos in Appalachia, and an early warning system for inbound nuclear strikes. The warning system gave precedence to military contacts, leaving civilians with little time to prepare. This deeply upset Senator Sam Blackwell of the Appalachian Territory. A concerned member of the department had to send a threatening letter to the senator for fear that he would go public with the information, which would cause widespread panic.

Divisions
The War Relocation Authority was responsible for rounding up anyone anyone they believed posed a threat to national security, namely those of Chinese ancestry, and isolating them from the rest of the population. Chinese-Americans across the country were forced out of their homes and placed in concentration camps.

The Joint Chiefs of Staff were a pre-War advisory board to the President and Secretary of Defense, made up of the top military leaders of the nation.

The Reclamation and Restoration Division was responsible for the rehabilitation of old military sites, or defunct sources of materiel and supplies vital to the war effort.

The Defense Intelligence Agency was responsible for monitoring the threat of various foreign and domestic powers. They maintained an extensive intelligence network abroad and on the domestic front, comprising human intelligence, signals intelligence, data processing, and more.

Final Secretary of Defense
On July 16 of 2077, Senator Sam Blackwell had lunch with the Secretary of Defense. The Secretary also sent a joint letter, alongside the President, to Governor Evans of the Appalachian Territory, thanking him for the continuous stream of raw materials supplying the war effort.

During the Great War, the Secretary was supposed to take shelter in the Congressional Bunker alongside the other members of Congress and the President's Cabinet. However, they were removed from the Cabinet Nuclear Alarm system in questionable circumstances, left to fend for themselves in the face of the Great War.

Appearances
The Department of Defense is mentioned in Fallout, Fallout 3, its add-on Point Lookout, Fallout 4, its add-on Automatron, and Fallout 76.