New Mexico Territorial Laws and Treaties NM TREATIES MEXICO PEACE TREATY, Art. 21

If unhappily any disagreement should hereafter arise between the governments of the two republics, whether with respect to the interpretation of any stipulation in this treaty, or with respect to any other particular concerning the political or commercial relations of the two nations, the said governments, in the name of those nations, do promise to each other that they will endeavor, in the most sincere and earnest manner, to settle the differences so arising, and to preserve the state of peace and friendship in which the two countries are now placing themselves; using, for this end, mutual representations and specific negotiations. And if, by these means, they should not be enabled to come to an agreement, a resort shall not, on this account, be had to reprisals, aggression or hostility of any kind, by the one republic against the other, until the government of that which deems itself aggrieved shall have maturely considered, in the spirit of peace and good neighborship, whether it would not be better that such difference should be settled by the arbitration of commissioners appointed on each side, or by that of a friendly nation. And should such course be proposed by either party, it shall be acceded to by the other, unless deemed by it altogether incompatible with the nature of the difference, or the circumstances of the case.