THE EXTENSION OF THE EUROPEAN SYSTEM TO THE WESTERN
HEMISPHERE DECLARED INCOMPATIBLE WITH THE AMERICAN SYSTEM,
BY PRESIDENT MONROE.

"The political system of the Allied Powers is essentially
different ... from that of America. This difference proceeds
from that which exists in their respective Governments, and
to the defence of our own, which has been achieved by the
loss of so much blood and treasure, and matured by the
wisdom of their most enlightened citizens, and under which
we have enjoyed unexampled felicity, this whole nation is
devoted. We owe it, therefore, to candor and to the amicable
relations existing between the United States and those
Powers, to declare that we should consider any attempt on
their part to extend their system to any portion of this
hemisphere as dangerous to our peace and safety....

"It is impossible that the Allied Powers should extend their
political system to any portion of either continent without
endangering our peace and happiness."

President Monroe Annual Message of December 2, 1823

THE AMERICAN SYSTEM DECLARED TO HAVE EXTENDED ITSELF TO
THE WHOLE WESTERN HEMISPHERE, BY PRESIDENT JOHN QUINCY
ADAMS

"Among the inquiries which were thought entitled to
consideration before the determination was taken to accept
the invitation [to the proposed Congress of the American