ississippi River, was under siege; its loss would cut the South in two. Food supplies in northern Virginia were scarce. However, Europeans were becoming convinced of the South's right to recognition, and peace sentiment was growing in the North. All these factors influenced Lee's summer strategy. Another invasion of the North might relieve Vicksburg, feed his men, and win recognition. Lee reorganized his army into three corps: one under Longstreet, a second under Richard S. Ewell, and the third under Hill. Subordinate commands were shaken up, so a new command structure guided the Confederate Army as it moved toward Harrisburg, Pennsylvania. Lee's vanguard encountered opposition near Gettysburg and on July 1 won modest spoils. Lee wanted to push the advantage. But Ewell delayed, and the next day Longstreet, convinced of defeat, also delayed attacking the Federal leFort On July 3, General George Pickett charged against the Federal center and was repulsed. For the first time Lee's army had been defeated, and Lee assumed all blame. Questions still arise over why he ordered the attack on July 3. But Lee seems to have had no choice. To miss this chance would have been a miserable compromise. Typically, he did not lament for long; instead, he planned to refit his army and renew the offensive. But the loss of 20,000 men and as many arms was unrecoverable. Vicksburg's loss, with a 30,000-man garrison, on July 4 confronted the South with a double disaster in men and supplies. Lee could not resume the offensive; his army was divided, with Longstreet moving west to help General Braxton Bragg and the rest committed to holding Richmond. Lee maneuvered against General George Meade throughout the remainder of 1863, and in spring 1864 he met the advance of Meade and Ulysses S. Grant. A series of bloody engagements followed. On June 3 at Cold Harbor the Federal assault on Lee's entrenchments was repulsed. Meade and Grant moved south of the James River, h...