The confident belief, that an unusual strain on the supposed weak points of the Federal Constitution would involve it in the fate of the Cromwell dynasty and the French Revolution had begun to sleep, at the time of the Secession movement, and but one ray of hope yet remained to the enemies of republican government. They watched Slavery with an anxious eye. There was their only chance. In that they saw the apple of discord which might destroy our Union. They observed with exultation the increasing influence of those who warred upon slavery in the North, and the increasing insolence of those who would nationalize it in the South. On this ground State and Federal authority must, they thought, come in conflict. And as far as foresight could avail them, they had some reason to be encouraged. That question has always been, without doubt, our greatest, almost our only danger.
There is reason to believe, then, that, when the Rebellion broke out, the theorists of Europe deemed the test to have come, and that the final success or failure of the Federal Constitution was staked on the result. The people of the United States have been willing to accept that issue. We have been ready to test the doctrines of Democracy by the practicability of maintaining the Union, and to demonstrate, that, if need be, the General Government may receive at the hands of the people greater strength without endangering either their liberties or the order of law.
The diplomatic correspondence between the State Department and our ministers to foreign powers during the present contest is contained in two large volumes, published by the Government, which are full of valuable matter. In the limited space permitted us, but little more than a general survey of this correspondence can be attempted; and as our relations with England far exceed all others in closeness and interest,—a striking proof of which is found in the fact that the room occupied in these volumes by communications with that country is greater than that given to all the world besides,—we mainly confine ourselves to the portion which regards her.