(1) The Pact, Announced by the Board of Information, December 21, 1941
Since the agreement of basic views concerning the conclusion of an alliance pact between Japan and Thailand was reached between our Ambassador, Teiji Tsubokami, and the Thai Prime Minister, Luang Pibul Songgram, on the 11th of this month (December, 1941), discussions were held regarding the drafting of the pact, which resulted in a satisfactory conclusion. Following the completion of necessary procedure, therefore, the Pact of Alliance between Japan and Thailand was signed between Ambassador Tsubokami and Prime Minister and concurrently Foreign Minister Pibul Songgram in Bangkok at 10 a.m. (noon according to Japan time) December 21, 1941.
The Imperial Government of Japan and the Royal Government of Thailand, firmly convinced that the establishment of a new order in East Asia the only way of realizing prosperity of that region and the
indispensable condition for the restoration and promotion of world peace, and animated by a firm and inflexible determination to eliminate all baneful influences which are obstacles to such purpose, have agreed as follows:
Article 1 An alliance is established between Japan and Thailand on the basis of mutual respect for their independence and sovereignty.
Article 2 In case either Japan or Thailand finds hereself in an armed conflict vis-a-vis one or more third Powers, Thailand or Japan shall immediately range herself on the side of the other country as her ally and shall aid the latter with all political, economic and military means.
Article 3 The details relative to the execution of Article 2 shall determined, by common accord, between the compentent authorities of Japan and Thailand.
Article 4 Japan and Thailand, in case of war prosecuted in common, engage not to conclude an armistice or a peace without their complete mutual accord.
Article 5 The present Pact shall come into effect simultaneously with its signature and shall remain valid for the duration of ten years. The Contracting Parties shall consult between them regarding the renewal of the present Pact at a suitable time before the expiration of the said duration.