Question: What agency of the United States was the Bureau that Josephine Sophia White Griffing did much of her work through?
Context: Bureau 121 is a North Korean cyberwarfare agency, which is part of the Reconnaissance General Bureau of North Korea's military.  According to American authorities, the General Bureau of Reconnaissance (also termed Reconnaissance General Bureau) manages clandestine operations and has six bureaus.  Cyber operations are thought to be a cost-effective way for North Korea to maintain an asymmetric military option, as well as a means to gather intelligence; its primary intelligence targets are South Korea, Japan, and the United States.  Bureau 121 was created in 1998. Josephine Meeker (January 28, 1857 – December 20, 1882), was a teacher and physician at the White River Indian Agency in Colorado Territory, where her father Nathan Meeker was the United States (US) agent.  On September 29, 1879, he and 10 of his male employees were killed in a Ute attack, in what became known as the Meeker Massacre.  Josephine, her mother Arvilla Meeker, and Mrs. Shadruck Price and her two children were taken captive and held hostage by the Ute tribe for 23 days. The United States Children's Bureau is a federal agency organized under the United States Department of Health and Human Services' Administration for Children and Families.  Today, the bureau's operations involve improving child abuse prevention, foster care, and adoption.  Historically, its work was much broader, as shown by the 1912 act which created and funded it: The Bureau of Navigation, later the Bureau of Navigation and Steamboat Inspection and finally the Bureau of Marine Inspection and Navigation — not to be confused with the United States Navy' s Bureau of Navigation — was an agency of the United States Government established in 1884 to enforce laws relating to the construction, equipment, operation, inspection, safety, and documentation of merchant vessels.  The bureau also investigated marine accidents and casualties; collected tonnage taxes and other navigation fees; and examined, certified, and licensed merchant mariners. Emma Octavia Lundberg (October 8, 1881 – November 17, 1954) was a Swedish-American child welfare leader and the first Director of the Social Services Division of the United States Children's Bureau.  She was born in 1881 in Västergötland, Sweden.  In 1884, Lundberg emigrated with her parents to the United States and settled in Rockford, Illinois.  She received her bachelor's and master's degree from University of Wisconsin.  In 1914 she became the first Director of the Social Services Division of the United States Children's Bureau, where she directed studies on illegitimacy, juvenile delinquency, state child welfare laws, and the care of children considered mentally deficient.  In 1925 she resigned her Director post in favor of joining the Child Welfare League of America, where she worked as Director of the Department of Institutional Care, and later as Director of Studies and Surveys.  In the beginning of the Great Depression she was made Director of Research and Statistics at the New York Temporary Emergency Relief Administration under then-Governor Franklin D. Roosevelt.  In 1935 she went back to the United States Children's Bureau when Chief of the Bureau Katherine Lenroot asked her to; Lenroot had been the Assistant Director of the Social Services Division of the Bureau when she was Director there.  Lenroot had also been her assistant at the Wisconsin Industrial Commission in 1913.  Lundberg worked as the Assistant Director of the Child Welfare Division from 1935 until 1942, and from 1942 to 1945 she worked as a consultant in social services for children.  She helped form children welfare provisions under the Social Security Act 1938.  In 1940 she was the Assistant Secretary to the 1940 White House Conference on Children in a Democracy.  She retired in 1945 for health reasons.  Lundberg lived with Lenroot in Hartsdale, New York from 1951 (when Lenroot retired) until her own death in 1954. Josephine Sophia White Griffing (December 18, 1814February 18, 1872) was an American reformer who campaigned against slavery and for women's rights.  She was born in Hebron, Connecticut on December 18, 1814 but later settled in Litchfield, Ohio.  There she worked as a lecturer for the Western Anti-Slavery Society and Ohio Women's Rights Association.  At the end of the American Civil War she moved to Washington, D.C., to help work with the unemployed freedmen.  Much of her work was done through the Freedmen's Bureau, where she worked as an assistant to the assistant commissioner and as an agent.  Griffing was also active in several women's rights organizations.  She died in Washington, D.C. on February 18, 1872. Bear Camp Road is a rugged mountain road traversing the Klamath Mountains in Josephine and Curry counties in the U.S. state of Oregon.  Bear Camp Road is a combination of Bureau of Land Management (BLM) Road 34-8-36 (also known as Galice Road) starting just south of Galice and United States Forest Service (FS) Road 23, which continues from the 12 mi point on 34-8-36 to Agness.  The road is named for a camp and viewpoint at the 4600 ft summit near the Josephine–Curry county line. The Russian Soviet Government Bureau (1919-1921), sometimes known as the "Soviet Bureau," was an unofficial diplomatic organization established by the Russian Soviet Federative Socialist Republic in the United States during the Russian Civil War.  The Soviet Bureau primarily functioned as a trade and information agency of the Soviet government.  Suspected of engaging in political subversion, the Soviet Bureau was raided by law enforcement authorities at the behest of the Lusk Committee of the New York State legislature in 1919.  The Bureau was terminated early in 1921. The Bureau of Refugees, Freedmen, and Abandoned Lands, usually referred to as simply the Freedmen's Bureau, was an agency of the United States Department of War to "direct such issues of provisions, clothing, and fuel, as he may deem needful for the immediate and temporary shelter and supply of destitute and suffering refugees and freedmen and their wives and children." The Bureau of Prohibition (or Prohibition Unit) was the federal law enforcement agency formed to enforce the National Prohibition Act of 1919, commonly known as the Volstead Act, which elaborated upon the 18th Amendment to the United States Constitution regarding the prohibition of the manufacture, sale, and transportation of alcoholic beverages.  When it was first established in 1920, it was a unit of the Bureau of Internal Revenue.  On April 1, 1927, it became an independent entity within the Department of the Treasury, changing its name from the "Prohibition Unit" to the "Bureau of Prohibition".  In 1930, it became part of the Department of Justice.  By 1933, with the Repeal of Prohibition imminent, it was briefly absorbed into the FBI, or "Bureau of Investigation" as it was then called, and became the Bureau's "Alcohol Beverage Unit," though, for practical purposes it continued to operate as a separate agency.  Very shortly after that, once Repeal became a reality, and the only federal laws regarding alcoholic beverages being their taxation, it was switched back to Treasury, where it was renamed the Alcohol Tax Unit.
Answer: Department of War