With Spain our differences up to the 22d of February, 1819, were settled by the treaty of Washington of that date, but at a subsequent period our commerce with the States formerly colonies of Spain on the continent of America was annoyed and frequently interrupted by her public and private armed ships.  They captured many of our vessels prosecuting a lawful commerce and sold them and their cargoes, and at one time to our demands for restoration and indemnity opposed the allegation that they were taken in the violation of a blockade of all the ports of those States.  This blockade was declaratory only, and the inadequacy of the force to maintain it was so manifest that this allegation was varied to a charge of trade in contraband of war.  This, in its turn, was also found untenable, and the minister whom I sent with instructions to press for the reparation that was due to our injured fellow-citizens has transmitted an answer to his demand by which the captures are declared to have been legal, and are justified because the independence of the States of America never having been acknowledged by Spain she had a right to prohibit trade with them under her old colonial laws.  This ground of defense was contradictory, not only to those which had been formerly alleged, but to the uniform practice and established laws of nations, and had been abandoned by Spain herself in the convention which granted indemnity to British subjects for captures made at the same time, under the same circumstances, and for the same allegations with those of which we complain.

I, however, indulge the hope that further reflection will lead to other views, and feel confident that when His Catholic Majesty shall be convinced of the justice of the claims his desire to preserve friendly relations between the two countries, which it is my earnest endeavor to maintain, will induce him to accede to our demand.  I have therefore dispatched a special messenger with instructions to our minister to bring the case once more to his consideration, to the end that if (which I can not bring myself to believe) the same decision (that can not but be deemed an unfriendly denial of justice) should be persisted in the matter may before your adjournment be laid before you, the constitutional judges of what is proper to be done when negotiation for redress of injury fails.

The conclusion of a treaty for indemnity with France seemed to present a favorable opportunity to renew our claims of a similar nature on other powers, and particularly in the case of those upon Naples, more especially as in the course of former negotiations with that power our failure to induce France to render us justice was used as an argument against us.  The desires of the merchants, who were the principal sufferers, have therefore been acceded to, and a mission has been instituted for the special purpose of obtaining for them a reparation already too long delayed.  This measure having been resolved on, it was put in execution without waiting for the meeting of Congress, because the state of Europe created an apprehension of events that might have rendered our application ineffectual.