The policy of levying upon the enemy contributions in every form consistently with the laws of nations, which it may be practicable for our military commanders to adopt, should, in my judgment, be rigidly enforced, and orders to this effect have accordingly been given. By such a policy, at the same time that our own Treasury will be relieved from a heavy drain, the Mexican people will be made to feel the burdens of the war, and, consulting their own interests, may be induced the more readily to require their rulers to accede to a just peace.

After the adjournment of the last session of Congress events transpired in the prosecution of the war which in my judgment required a greater number of troops in the field than had been anticipated. The strength of the Army was accordingly increased by "accepting" the services of all the volunteer forces authorized by the act of the 13th of May, 1846, without putting a construction on that act the correctness of which was seriously questioned. The volunteer forces now in the field, with those which had been "accepted" to "serve for twelve months" and were discharged at the end of their term of service, exhaust the 50,000 men authorized by that act. Had it been clear that a proper construction of the act warranted it, the services of an additional number would have been called for and accepted; but doubts existing upon this point, the power was not exercised. It is deemed important that Congress should at an early period of their session confer the authority to raise an additional regular force to serve during the war with Mexico and to be discharged upon the conclusion and ratification of a treaty of peace. I invite the attention of Congress to the views presented by the Secretary of War in his report upon this subject.

I recommend also that authority be given by law to call for and accept the services of an additional number of volunteers, to be exercised at such time and to such extent as the emergencies of the service may require.

In prosecuting the war with Mexico, whilst the utmost care has been taken to avoid every just cause of complaint on the part of neutral nations, and none has been given, liberal privileges have been granted to their commerce in the ports of the enemy in our military occupation.

The difficulty with the Brazilian Government, which at one time threatened to interrupt the friendly relations between the two countries, will, I trust, be speedily adjusted. I have received information that an envoy extraordinary and minister plenipotentiary to the United States will shortly be appointed by His Imperial Majesty, and it is hoped that he will come instructed and prepared to adjust all remaining differences between the two Governments in a manner acceptable and honorable to both. In the meantime, I have every reason to believe that nothing will occur to interrupt our amicable relations with Brazil.

It has been my constant effort to maintain and cultivate the most intimate relations of friendship with all the independent powers of South America, and this policy has been attended with the happiest results. It is true that the settlement and payment of many just claims of American citizens against these nations have been long delayed. The peculiar position in which they have been placed and the desire on the part of my predecessors as well as myself to grant them the utmost indulgence have hitherto prevented these claims from being urged in a manner demanded by strict justice. The time has arrived when they ought to be finally adjusted and liquidated, and efforts are now making for that purpose.

It is proper to inform you that the Government of Peru has in good faith paid the first two installments of the indemnity of $30,000 each, and the greater portion of the interest due thereon, in execution of the convention between that Government and the United States the ratifications of which were exchanged at Lima on the 31st of October, 1846. The Attorney-General of the United States early in August last completed the adjudication of the claims under this convention, and made his report thereon in pursuance of the act of the 8th of August, 1846. The sums to which the claimants are respectively entitled will be paid on demand at the Treasury.

I invite the early attention of Congress to the present condition of our citizens in China. Under our treaty with that power American citizens are withdrawn from the jurisdiction, whether civil or criminal, of the Chinese Government and placed under that of our public functionaries in that country. By these alone can our citizens be tried and punished for the commission of any crime; by these alone can questions be decided between them involving the rights of persons and property, and by these alone can contracts be enforced into which they may have entered with the citizens or subjects of foreign powers. The merchant vessels of the United States lying in the waters of the five ports of China open to foreign commerce are under the exclusive jurisdiction of officers of their own Government. Until Congress shall establish competent tribunals to try and punish crimes and to exercise jurisdiction in civil cases in China, American citizens there are subject to no law whatever. Crimes may be committed with impunity and debts may be contracted without any means to enforce their payment. Inconveniences have already resulted from the omission of Congress to legislate upon the subject, and still greater are apprehended. The British authorities in China have already complained that this Government has not provided for the punishment of crimes or the enforcement of contracts against American citizens in that country, whilst their Government has established tribunals by which an American citizen can recover debts due from British subjects.

Accustomed, as the Chinese are, to summary justice, they could not be made to comprehend why criminals who are citizens of the United States should escape with impunity, in violation of treaty obligations, whilst the punishment of a Chinese who had committed any crime against an American citizen would be rigorously exacted. Indeed, the consequences might be fatal to American citizens in China should a flagrant crime be committed by any one of them upon a Chinese, and should trial and punishment not follow according to the requisitions of the treaty. This might disturb, if not destroy, our friendly relations with that Empire and cause an interruption of our valuable commerce.

Our treaties with the Sublime Porte, Tripoli, Tunis, Morocco, and Muscat also require the legislation of Congress to carry them into execution, though the necessity for immediate action may not be so urgent as in regard to China.