Events were inevitably detaching Great Britain from the concert of Europe and putting her in opposition to the policy of intervention, both because of what it meant in Spain and what it might mean when applied to the New World. Knowing that the United States shared these latter apprehensions, George Canning conceived that the two countries might join in a declaration against any project by any European power for subjugating the colonies of South America either on behalf or in the name of Spain. He ventured to ask Richard Rush, American Minister at London, what his government would say to such a proposal. For his part he was quite willing to state publicly that he believed the recovery of the colonies by Spain to be hopeless; that recognition of their independence was only a question of proper time and circumstance; that Great Britain did not aim at the possession of any of them, though she could not be indifferent to their transfer to any other power. "If," said Canning, "these opinions and feelings are, as I firmly believe them to be, common to your government with ours, why should we hesitate mutually to confide them to each other; and to declare them in the face of the world?"
Why, indeed? To Rush there occurred one good and sufficient answer, which, however, he could not make: he doubted the disinterestedness of Great Britain. He could only reply that he would not feel justified in assuming the responsibility for a joint declaration unless Great Britain would first unequivocally recognize the South American republics; and, when Canning balked at the suggestion, he could only repeat, in as conciliatory manner as possible, his reluctance to enter into any engagement. Not once only but three times Canning repeated his overtures, even urging Rush to write home for powers and instructions.
The dispatches of Rush seemed so important to President Monroe that he sent copies of them to Jefferson and Madison, with the query--which revealed his own attitude--whether the moment had not arrived when the United States might safely depart from its traditional policy and meet the proposal of the British Government. If there was one principle which ran consistently through the devious foreign policy of Jefferson and Madison, it was that of political isolation from Europe. "Our first and fundamental maxim," Jefferson wrote in reply, harking back to the old formulas, "should be never to entangle ourselves in the broils of Europe, our second never to suffer Europe to intermeddle with Cis-Atlantic affairs." He then continued in this wise: