To the militia force, mainly of the cities of New York and Brooklyn, was from the first entrusted the defence of the valley of the Susquehanna. The Army of the Potomac could afford no protection to Harrisburg and the rich agricultural regions lying around it. For General Hooker, notwithstanding his vigilance and activity, had not prevented the advance corps of the enemy, under General Ewell, from penetrating to the very banks of the Susquehanna. Whether or not he cared to prevent it, is not here considered. A little later, to be sure, Lee became evidently alarmed on account of his extended line and made haste to contract it. But during the few days of panic that intervened between the first appearance of the enemy along the Susquehanna and their hasty departure therefrom, nothing stood between them and Harrisburg save the militia, whom General Halleck in his Official Report reviewing the military operations of the year 1863, saw fit to allude to as follows:-- "Lee's army was supposed to be advancing against Harrisburg, which was garrisoned by State militia, upon which little or no reliance could be placed." York had fallen; and, notwithstanding the Mayor of that city--be his name forever buried in oblivion--went out to meet the enemy hoping doubtless to secure his favor by craven submission, a heavy ransom had been exacted for its exemption from pillage. A rebel detachment had fallen upon and put to flight the force guarding the bridge over the Susquehanna at Columbia, and thus compelled the burning of that fine structure; while Ewell with the main body of his corps was moving cautiously up toward Harrisburg. Finally, when within five miles of Bridgeport Heights, having driven in the force of skirmishers who--militia, be it observed--had for several days gallantly held in check the head of the advancing column, he halted. The state capital was a tempting prize, but scarcely worth to him the risk of a desperate battle. The gates of the city were shut, and Ewell hesitated to hurl his masses against them. It is not now pertinent to enquire what might have resulted had he chosen to attack. He did not attack, and the capital of Pennsylvania was spared the shame of having to pass beneath the yoke of a conqueror. To the militia of New York and Brooklyn, in the main, is due the praise of having saved her that humiliation.