Whilst, therefore, the possibility of an invasion remains, we are bound on every consideration of prudence and of policy, to act as if the probability were likewise at hand. The youngest of us has seen too many changes and revolutions--too many political disagreements and jarrings among the European family, to prophesy with confidence that these shall never be renewed. Even in commerce we have not got reciprocity, and we cannot expect to get it in the more abstract point of armaments. Woodburne House was better fortified by Dominie Sampson's folios, than Britain possibly could be by bales of Cobden's cotton. Our sincere belief is, that the surest method of accelerating a war is to take the advice of the Manchester demagogues, repudiate the ideas of the Duke of Wellington, and remain in stupid inactivity. It was necessary for public safety that this matter should be laid before the country; and the Duke for doing so may yet deserve a debt of gratitude, which will amply recompense him for the vulgar contumely of a host of disloyal bagmen. But it would be preposterous to suppose that the discussion which has arisen at home has not attracted deep observation abroad. The eyes of Europe are upon us, watching what course we are to adopt; and France in particular is waiting, with indrawn breath and tremulous anxiety, the result of the coming discussion. Our weakness at home is now apparent to the world; we cannot conceal it; the sole question is, whether we shall apply the remedy. Admit the possibility, and the question is a serious one indeed! Let us suppose that, from some unforeseen accident, some stoppage in the wheels of diplomacy, or some untoward casualty, war was declared between Great Britain and France, or even any other continental power. Such an event could not happen without dividing the nations of Europe. We could not afford to withdraw our forces from the colonies, because these would probably be made the earliest points of attack,--nor from Ireland, except at the immediate and imminent risk of a rebellion. Even should it be thought prudent to leave the colonies to their fate, the transport of the garrisons would involve a considerable period of time--a fact of which our enemy must be aware, and of which he would be foolish not to take advantage. We should be compelled to recruit immediately, and upon a large scale; and it would take some time to metamorphose Mr Cobden's operatives, or even that respectable senator himself, into any thing like the semblance of soldiers. If fifty thousand armed men were to be landed on the southern coast--and no one seems to doubt the possibility of such an occurrence--we should like to know what are our means of resistance? We have read a good many letters upon the subject, in the daily prints--some of them apparently by ex-military men, and some by politicians of the school of Tomkins and Cobden--but not one of them has been able to make out a decent case of opposition.