The Second International American Conference was held in the city of Mexico 1901-02. This conference arranged for all Latin-American States to become parties to the Hague Convention of 1899 for the pacific settlement of international disputes, and drafted a treaty for the compulsory arbitration of pecuniary claims, the first article of which was as follows: The High Contracting Parties agree to submit to arbitration all claims for pecuniary loss or damage which may be presented by their respective citizens, and which cannot be amicably adjusted through diplomatic channels and when said claims are of sufficient importance to warrant the expenses of arbitration. This treaty was signed by the delegates of seventeen states, including the United States of America.[279] The Third International American Conference was held at Rio de Janeiro in 1906. Among other things it extended the pecuniary claims convention drafted by the previous conference for another period of five years, and recommended to the governments represented that they invite the Second Hague Conference, which had been called for 1907, "to examine the question of the compulsory collection of public debts, and, in general, means tending to diminish between nations conflicts having an exclusively pecuniary origin."[280] Added significance was given to the Rio conference by the presence of Secretary Root who, although not a delegate, made it the occasion of a special mission to South America. The series of notable addresses which he delivered on this mission gave a new impetus to the Pan American movement. The Fourth International American Conference was held at Buenos Aires in 1910. It drafted treaties relating to patents, trade-marks, and copyrights. It extended the pecuniary claims convention for an indefinite period. And finally, it enlarged the scope of the Bureau of American Republics and changed its name to the Pan American Union.[281] A fifth conference was called to meet at Santiago, Chile, in 1914, but was postponed on account of the European war.