‘Whenever any nation in Europe,’ said Canning, ‘starts up with a determination to oppose that power which (whether professing insidious peace or declaring open war) is alike the common enemy of all other peoples, that nation, whatever its former relations with us may have been, becomes _ipso facto_ the ally of Great Britain. In furnishing the aid which may be required, the Government will be guided by three principles--to direct the united efforts of both countries against the common foe, to direct them in such a way as shall be most beneficial to our common ally, and to direct them to such objects as may be most conducive to British interests. But of these objects the last shall never be allowed to come into competition with the other two. I mention British interests chiefly for the purpose of disclaiming them as any material part of the considerations which influence the British Government. No interest can be so purely British as Spanish success: no conquest so advantageous to England as conquering from France the complete integrity of the Spanish dominions in every quarter of the globe.’
Sheridan repeats the same theme in a slightly different key:--‘Hitherto Buonaparte has run a victorious race, because he has contended with princes without dignity, ministers without wisdom, and peoples without patriotism. He has yet to learn what it is to combat a nation who are animated with one spirit against him. Now is the time to stand up boldly and fairly for the deliverance of Europe, and if the ministry will co-operate effectually with the Spanish patriots they shall receive from us cordial support.... Never was anything so brave, so noble, so generous as the conduct of the Spaniards: never was there a more important crisis than that which their patriotism has occasioned to the state of Europe. Instead of striking at the core of the evil, the Administrations of this country have hitherto gone on nibbling merely at the rind: filching sugar islands, but neglecting all that was dignified and consonant to the real interests of the country. Now is the moment to let the world know that we are resolved to stand up for the salvation of Europe. Let us then co-operate with the Spaniards, but co-operate in an effectual and energetic way. And if we find that they are really heart and soul in the enterprise, let us advance with them, magnanimous and undaunted, for the liberation of mankind.... Above all, let us mix no little interests of our own in this mighty combat. Let us discard or forget British objects, and conduct the war on the principle of generous support and active co-operation.’