On January 21, 1952, representatives of the United States and Chile initiated negotiations at Santiago for a bilateral military assistance agreement. Pertinent documents are in Department of State file 725.5 MSP. The agreement was signed on April 9, and entered into force on July 11, 1952; for text, see Department of State Treaties and Other International Acts Series (TIAS) No. 2703 or United States Treaties and Other International Agreements (UST), volume 3 (part 4), page 5123.
Concurrent with the negotiations for the military assistance agreement, representatives of the two governments negotiated a related bilateral military plan. The “Plan of the Governments of the Republic of Chile and of the United States of America for Their Common Defense” was initialed on April 9, 1952, by Ambassador Bowers and Chilean Minister for National Defense General Guillermo Barrios Tirado. A copy of the plan and a translation were transmitted to the Department of State under cover of despatch 1210, from Santiago, dated April 10, 1952, not printed (725.5 MSP/4–1052).