I would like to analyze the diplomatic activities of the previous US administrations in terms of priorities by geographical region. For example, the regions that officials visited most, the leaders they received the most, and so on.
Dear Mr. Morrisson,
Thank you for posting your request on History Hub!
We searched the National Archives catalog and located series titled Numerical Files, 1906-1910; Central Decimal Files, 1910-1963; and Subject-Numeric Files, 1963-1973 in the General Records of the Department of State (Record Group 59) that are arranged by various State Department filing systems and may be useful to your research. More information about the files in RG 59 can be found here.
We hope this is helpful. Best of luck with your research!