Gareth Porter has made an important contribution to understanding the 1973 Agreement on Ending the War and Restoring Peace in Vietnam.* Analyzing the agreement in the context of the interests and capabilities of all parties involved, Porter realizes (correctly in my view) that the Paris Agreement can be understood only as part of the political-diplomatic history of the conflict, or as a reflection of the basic continuity of policies in Hanoi, Saigon, and Washington over the past 20 years on the question of a negotiated settlement.
"Review Article: A Peace Denied: The United States, Vietnam and the Paris Agreements,"
Naval War College Review: Vol. 30
, Article 4.
Available at: https://digital-commons.usnwc.edu/nwc-review/vol30/iss1/4