[Sidenote: Sept. 17, 1862 A.D.] General Lee was strong enough now to carry the war into Northern territory. He captured Harper’s Ferry, and passed into Maryland. M’Clellan was at length stimulated to action, and having carried his troops northwards, he attacked Lee at Antietam. The Northern army far outnumbered the enemy. The battle was long and bloody. When darkness sank down upon the wearied combatants no decisive advantage had been gained. M’Clellan’s generals urged a renewal of the attack next morning. But this was not done, and General Lee crossed the Potomac and retired unmolested into Virginia. M’Clellan resumed his customary inactivity. The President ordered him to pursue the enemy and give battle. He even wished him to move on Richmond, which he was able to reach before Lee could possibly be there. In vain. M’Clellan could not move. His horses had sore tongues and sore backs; they were lame; they were broken down by fatigue. Lincoln had already been unduly patient. But the country would endure no more. [Sidenote: Nov. 5, 1862 A.D.] General M’Clellan was removed from command of that army whose power he had so long been able to neutralize; and his place was taken by General Burnside. Burnside at once moved his army southwards, for it was not yet too late for a Virginian campaign. He reached the banks of the Rappahannock, beside the little town of Fredericksburg. He had to wait there for many weary days till he obtained means to cross the river. While he lay, impatient, General Lee concentrated all the forces under his command upon the heights which rose steeply from the opposite bank of the stream. He threw up earthworks and strongly intrenched his position. There he waited in calmness for the assault which he knew he could repel. When Burnside was able to cross the Rappahannock, he lost no time in making his attack. One portion of his force would strike the enemy on his right flank; the rest would push straight up the heights and assault him in front. A slight success in the flanking movement cheered General Burnside. But in the centre his troops advanced to the attack under a heavy fire of artillery which laid many brave men low. The Northern soldiers fought their way with steady courage up the height. They were superior in numbers, but the rebels fought in safety within a position which was impregnable. The battle was no fair trial of skill and courage, but a useless waste of brave lives. Burnside drew off his troops and re-crossed the Rappahannock, with a loss of twelve thousand men--vainly sacrificed in the attempt to perform an impossibility. * * * * *