Second Inaugural Address of James Madison. This Inaugural Address was delivered on March 13th, 1813. The War of 1812 was in full swing and Madison uses this speech to justify America's declaration of war on the British.
From the site:
On the issue of the war are staked our national sovereignty on the high seas and the security of an important class of citizens whose occupations give the proper value to those of every other class. Not to contend for such a stake is to surrender our equality with other powers on the element common to all and to violate the sacred title which every member of the society has to its protection. I need not call into view the unlawfulness of the practice by which our mariners are forced at the will of every cruising officer from their own vessels into foreign ones, nor paint the outrages inseparable from it. The proofs are in the records of each successive Administration of our Government, and the cruel sufferings of that portion of the American people have found their way to every bosom not dead to the sympathies of human nature.
As the war was just in its origin and necessary and noble in its objects, we can reflect with a proud satisfaction that in carrying it on no principle of justice or honor, no usage of civilized nations, no precept of courtesy or humanity, have been infringed. The war has been waged on our part with scrupulous regard to all these obligations, and in a spirit of liberality which was never surpassed.
How little has been the effect of this example on the conduct of the enemy!
They have retained as prisoners of war citizens of the United States not liable to be so considered under the usages of war.
They have refused to consider as prisoners of war, and threatened to punish as traitors and deserters, persons emigrating without restraint to the United States, incorporated by naturalization into our political family, and fighting under the authority of their adopted country in open and honorable war for the maintenance of its rights and safety. Such is the avowed purpose of a Government which is in the practice of naturalizing by thousands citizens of other countries, and not only of permitting but compelling them to fight its battles against their native country.