Phnom Penh: Ueno Atsushi, Japanese Ambassador to Cambodia, expressed his appreciation and support for Cambodia, which has shown maturity, patience, openness and the use of international law in resolving the border issue with Thailand.
Expression of Support The Japanese Ambassador made this statement during a meeting with Mr. Thun Vathana, Second Vice President of the Senate, on the afternoon of July 1, 2026.
During the meeting, Mr. Thun Vathana, Second Vice President of the Senate, praised Japan’s role in promoting peace and prosperity for Cambodia since the elections organized by the United Nations in 1993.
Regarding the border dispute with Thailand, Mr. Thun Vathana affirmed Cambodia’s policy of maintaining patience, being open to third-party participation, and relying on international law. Mr. Thun Vathana expressed support for the Royal Government of Cambodia in resolving the maritime border dispute with Thailand through the United Nations Convention on the Law of the Sea (UNCLOS) after Thailand unilaterally abrogated the 2001 Memorandum of Understanding (MoU). On the land border issue, he stated that Cambodia is open to bilateral negotiations through existing mechanisms and that in the future, Cambodia may use the International Court of Justice (ICJ) if necessary.
Mr. Thun Vathana expects Thailand to respect the Franco-Siamese treaties of 1904 and 1907 and return to Cambodia the areas and temples that Thai soldiers illegally occupied after the ceasefire last year.
Finally, Mr. Thun Vathana and the Japanese ambassador committed to continuing to maintain relations with each other towards strengthening friendship, partnership and parliamentary diplomacy between Cambodia and Japan.
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