231. Memorandum From the Executive Secretary of the Department of State (Read) to the Presidentʼs Special Assistant (Rostow)1

SUBJECT

  • Australian Declaration on Cambodiaʼs Borders—Implications for the United States

For the Presidentʼs information there is enclosed a memorandum that discusses the implications for the United States of the recent Australian recognition of Cambodian borders.

BHR

Enclosure

Australian Declaration on Cambodiaʼs Borders—Implications for the United States

The Statement and Its Background. At the conclusion of a visit by the Cambodian Foreign Minister on February 21, the Australian Government in Canberra made its long-awaited statement on Cambodiaʼs frontiers, in the following terms: “In conformity with the United Nations Charter, Australia recognizes and respects the territorial integrity of the Kingdom of Cambodia within its present frontiers.” Cambodia has threatened to “freeze” diplomatic relations with all remaining countries that refused to issue statements recognizing Cambodiaʼs present borders. The Australian statement derives special significance from the fact that an earlier statement (July 1967) had at first been accepted but then rejected when Australia had made clear it had not intended to imply an endorsement of the specific demarcation of Cambodiaʼs frontier.

Cambodian Interpretation. When the Cambodian Foreign Minister pointedly commented in a February 21 press conference that the Australian declaration provided “moral and legal support” for Cambodian [Page 513] claims against its neighbors, the Australian Government stuck to its decision not to correct the Foreign Ministerʼs interpretation nor to comment or amplify in any way on its own declaration.

The Cambodian official also said in Canberra that Cambodia would like to have the United States, too, issue a declaration recognizing its borders. The U.S. is in fact the only great power that has not issued a declaration and we are coming under increasing pressure to do so.

U.S. Position. We have no legal problems with issuing a statement similar to that made by Australia, or even one more sweeping and without such qualifications as “in conformity with the UN Charter.” While there could be some advantage in issuing such a declaration since it might help pave the way for an eventual restoration of relations with Cambodia, we would have real political problems because of the reactions of Cambodiaʼs neighbors to the public interpretation that Cambodia would place on our border statement. Cambodiaʼs frontiers are still not clearly defined in some cases.

While we might attempt, as Australia is doing, to avoid any comment on Cambodiaʼs interpretation, we would have to explain our statement in advance to the Governments of Laos, Thailand and South Vietnam, and there would be no guarantee that they would not make our position public. In such a case, the Cambodians would be quite apt to do what they did with Australiaʼs earlier declaration, i.e., declare it to be null and void. We would also be accused of duplicity.

Another problem that exists for us, but not for the Australians, is that Cambodia has indicated that it interprets statements of “respect and recognition” of its borders as a sort of guarantee against border violations. As long as the enemy makes use of the Cambodia/Vietnam border areas, including Cambodian territory, it is virtually impossible to avoid border violations without surrendering the border regions to the enemy.

Strategy. Because of these problems we believe it best to proceed slowly, and step by step: We can first explore with the Cambodians some mutual understanding—even tacit—of what a U.S. border statement would and would not mean. We are prepared to undertake such exploration at a propitious time. Unless such discreet advance preparation is made, we run the serious risk of having a U.S. declaration blow up in our face.

At the present time we are waiting to see what the Cambodian Government does with the information we recently provided it about VC/NVA use of their territory. We also wish to see how anxious Cambodia is to renew relations with us. The Cambodian Foreign Minister gave his Australian hosts the impression of being not very eager. He said Cambodia would need, in addition to a border declaration, “guarantees” against American border violations.

  1. Source: Department of State, Central Files, POL 32 CAMB. Confidential. Drafted by Herz and Perry on February 23 and cleared by Bundy.