s than our
duty to remain strictly neutral, I shall not abandon it. You will
perceive from the correspondence submitted to you in connection with
this subject that the course adopted in this case has been properly
regarded by the belligerent powers interested in the matter.

Although a minister of the United States to the German Empire was
appointed by my predecessor in August, 1848, and has for a long time
been in attendance at Frankfort-on-the-Main, and although a minister
appointed to represent that Empire was received and accredited here, yet
no such government as that of the German Empire has been definitively
constituted. Mr. Donelson, our representative at Frankfort, remained
there several months in the expectation that a union of the German
States under one constitution or form of government might at length be
organized. It is believed by those well acquainted with the existing
relations between Prussia and the States of Germany that no such union
can be permanently established without her cooperation. In the event of
the formation of such a union and the organization of a central power in
Germany of which she should form a part, it would become necessary to
withdraw our minister at Berlin; but while Prussia exists as an
independent kingdom and diplomatic relations are maintained with her
there can be no necessity for the continuance of the mission to
Frankfort. I have therefore recalled Mr. Donelson and directed the
archives of the legation at Frankfort to be transferred to the American
legation at Berlin.

Having been apprised that a considerable number of adventurers were
engaged in fitting out a military expedition within the United States
against a foreign country, and believing from the best information I
could obtain that it was destined to invade the island of Cuba, I deemed
it due to the friendly relations existing between the United States and
Spain, to the treaty between the two nations, to the laws of the United
States, and, above all, to the American honor to exert the lawful
authority of this Government in suppressing the expedition and
preventing the invasion. To this end I issued a proclamation enjoining
it upon the officers of the United States, civil and military, to use
all lawful means within their power. A copy of that proclamation is
herewith submitted. The expedition has been suppressed. So long as the
act of Congress of the 20th of April, 1818, which owes its existence to
the law of nat