He saw that by England's victory at Waterloo a threat to all monarchical and dynastic systems of government had been created.
He also saw that our steady growth was a part of the same threat.

With this in mind, in 1822, he brought about the Holy Alliance.

The first Article of the Holy Alliance reads: "The high contracting Powers, being convinced that the system of representative government is as equally incompatible with the monarchical principle as the maxim of sovereignty of the people with the Divine right, engage mutually, in the most solemn manner, to use all their efforts to put an end to the system of representative governments, in whatever country it may exist in Europe, and to prevent its being introduced in those countries where it is not yet known." Behind these words lay a design, hardly veiled, not only against South America, but against ourselves.

In a volume entitled With the Fathers, by John Bach McMaster, and also in the fifth volume of Mr.McMaster's history, chapter 41, you will find more amply what I abbreviate here.
Canning understood the threat to us contained in the Holy Alliance.
He made a suggestion to Richard Rush, our minister to England.

The suggestion was of such moment, and the ultimate danger to us from the Holy Alliance was of such moment, that Rush made haste to put the matter into the hands of President Monroe.