Italy, Germany and Japan will henceforth conduct in common and jointly a war which has been imposed on them by the United States of America and England, by all means at their disposal and until the end of hostilities.
Italy, Germany and Japan undertake each for himself that none of the parties to the present accord will conclude either armistice or peace, be it with the United States or with England without complete and reciprocal agreement [of the three signatories to this pact].
Italy, Germany and Japan, even after the victorious conclusion of this war, will collaborate closely in the spirit of the Tripartite Pact, concluded Sept. 21, 1940, in order to realize and establish an equitable new order in the world.
The present accord is effective immediately on its signature and remains in force for the duration of the Tripartite Pact, signed Sept. 21, 1940. The high contracting parties of this accord will at an opportune moment agree among themselves the means of implementing Article III above of this accord.
Sources: New York Times, December 12, 1941; ibiblio