For any nation to postpone the making of military preparations till such time as they are actually required in defence, is to waste the public money, and endanger the public safety. The closing of an avenue of approach, the security of a single road or river, or even the strategic movement of a small body of troops, often effects, in the beginning, what afterwards cannot be accomplished by large fortifications, and the most formidable armies. Had a small army in 1812, with a well-fortified depot on Lake Champlain, penetrated into Canada, and cut off all reinforcements and supplies by way of Quebec, that country would inevitably have fallen into our possession. In the winter of 1806-7, Napoleon crossed the Vistula, and advanced even to the walls of Koenigsberg, with the Austrians in his rear, and the whole power of Russia before him. If Austria had pushed forward one hundred thousand men from Bohemia, on the Oder, she would, in all probability, says the best of military judges, Jomini, have struck a fatal blow to the operations of Napoleon, and his army must have been exceedingly fortunate even to regain the Rhine. But Austria preferred remaining neutral till she could increase her army to four hundred thousand men. She then took the offensive, and was beaten; whereas, with one hundred thousand men brought into action at the favorable moment, she might, most probably, have decided the fate of Europe. "Defensive war," says Napoleon, "does not preclude attack, any more than offensive war is exclusive of defence," for frequently the best way to counteract the enemy's operations, and prevent his conquests, is, at the very outset of the war, to invade and cripple him. But this can never be attempted with raw troops, ill supplied with the munitions of war, and unsupported by fortifications. Such invasions must necessarily fail. Experience in the wars of the French revolution has demonstrated this; and even our own short history is not without its proof. In 1812, the conquest of Canada was determined on some time before the declaration of war; an undisciplined army, without preparation or apparent plan, was actually put in motion, eighteen days previous to this declaration, for the Canadian peninsula. With a disciplined army of the same numbers, with an efficient and skilful leader, directed against the vital point of the British possessions at a time when the whole military force of the provinces did not exceed three thousand men, how different had been the result!