There is something in a war carried on by invasion which makes it differ in circumstances from any other mode of war, because he who conducts it cannot tell whether the ground he gains be for him, or against him, when he first obtains it. In the winter of 1776, General Howe marched with an air of victory through the Jerseys, the consequence of which was his defeat; and General Burgoyne at Saratoga experienced the same fate from the same cause. The Spaniards, about two years ago, were defeated by the Algerines in the same manner, that is, their first triumphs became a trap in which they were totally routed. And whoever will attend to the circumstances and events of a war carried on by invasion, will find, that any invader, in order to be finally conquered must first begin to conquer. I confess myself one of those who believe the loss of Philadelphia to be attended with more advantages than injuries. The case stood thus: The enemy imagined Philadelphia to be of more importance to us than it really was; for we all know that it had long ceased to be a port: not a cargo of goods had been brought into it for near a twelvemonth, nor any fixed manufactories, nor even ship-building, carried on in it; yet as the enemy believed the conquest of it to be practicable, and to that belief added the absurd idea that the soul of all America was centred there, and would be conquered there, it naturally follows that their possession of it, by not answering the end proposed, must break up the plans they had so foolishly gone upon, and either oblige them to form a new one, for which their present strength is not sufficient, or to give over the attempt. We never had so small an army to fight against, nor so fair an opportunity of final success as now. The death wound is already given. The day is ours if we follow it up. The enemy, by his situation, is within our reach, and by his reduced strength is within our power. The ministers of Britain may rage as they please, but our part is to conquer their armies. Let them wrangle and welcome, but let, it not draw our attention from the one thing needful. Here, in this spot is our own business to be accomplished, our felicity secured. What we have now to do is as clear as light, and the way to do it is as straight as a line. It needs not to be commented upon, yet, in order to be perfectly understood I will put a case that cannot admit of a mistake.