I'm doing a research project that requires me to examine the revision history of the SOFA (Status of Forces Agreement) and Mutual Defense treaties between the US and Germany (via NATO), the US and South Korea. I'm trying to locate primary sources.
Unfortunately, I've only been able to find the original and latest versions of the treaties above. For example, here is the original document for the US-South Korea case.
And here is the 2001 Revision.
The documents indicate there was also a 1991 revision, and I want to know how the version differ. Where can I find the 1991 version?
I have similar questions for the revisions and revision history of the US-Germany (via NATO) treaty and agreements (the notes published about the minutes/records of the negotiation and revision process, such as those published by the US Naval War College or other bodies - revised in 1971, 1981, and 1993)