Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

Riegel corresponded with approximately 200 individuals reagarding events and issues with SIPA. This subseries contains correspondence with all individuals with last names beginning with K or later.

This subseries consists of iteme Riegel acquired during his international travel. Most items are from Eastern Europe, but there are a couple of items from Western Europe and a publication from Australia.

This subseries consists of iteme Riegel acquired during his international travel. Most items are from Eastern Europe, but there are a couple of items from Western Europe and a publication from Australia.

Riegel's items from the Federal Communications Commission primarily relate to its reports on radio broadcasts. Included in their reports are recommendations for foreign radio propaganda, and their prioritization of national defence in their own decisions.

Riegel's collection of government reports center around the effectiveness in developing and implementing propaganda addressed to the Axis powers and neutral and liberated countries. Reports tend to focus on one aspect of propaganda ranging from understanding the target audiences culture, to forms of counterpropaganda used by enemy forces.

Riegel's documents related to the Office of Control highlight the emphasis on censoring foreign media to ensure support of the allied troops. some items of note include breif correspondence related to the censorship of individual broadcasts due to lack of documentation, and periodic reports of the publications of various radio broadcasts.

The Office of Public Opinion Research focused on the public mood of various events during the war. Some items in this subseries include an analysis of public opinion as it relates to FDR's public talks and speeches, and public opinion of naval war policy.

Riegel worked with the Office of War Information durring the Second World War. His role was to provide guidance, analysis, and propose various forms of propaganda to use against enemy forces and to persuade potentially friendly neutrals. Items in this subseries are heavily related to these subjects and report on the successes and failures of implemented propaganda.

Riegel's collection of government reports center around the effectiveness in developing and implementing propaganda addressed to the Axis powers and neutral and liberated countries. Reports tend to focus on one aspect of propaganda ranging from understanding the target audiences culture, to forms of counterpropaganda used by enemy forces.

The Outpost Services Bureau provided support to govenrment agencies in ensuring their ability to function via connecting them with lines of communication and providing support when necessary. They created monthly progress reports of various outpost stations reporting the status of these stations and their effectiveness.

Items from the Psychological Warfare Branch focus on the impact of propaganda and counter propaganda on the target audeinces. Reports in this subseries include an analysis of propaganda upon French citizens, and a booklet on the functions of the 5th Army propaganda team.

Riegel's items from the state department primarily relate to the status of various areas in the front lines of the second World War. Some documents in this subseries inculde a description of the status of press and radio in Vichy France, and Chiang Kai Shek's perspective on the Japanese war front.