[Illustration: A full beard concealed the fact that “Jeb” Stuart at the time of the Peninsular Campaign was only twenty-nine years old.] On June 26 the Confederates launched their offensive at Mechanicsville, northeast of Richmond. They suffered defeat from Federal troops under Gen. FitzJohn Porter. Lee struck again on June 27 and finally broke the Federal lines at Gaines’s Mill after an all-day fight. McClellan then ordered his army to retire to Harrison’s Landing, the Federal supply base on the James River. Lee’s troops tried again and again to destroy the Federal army. But after hard fighting at Savage Station (June 29), Frayser’s Farm (June 30), White Oak Swamp (June 30), and Malvern Hill (July 1), McClellan safely reached Harrison’s Landing and the protection of a Federal river fleet. His dream of capturing Richmond had ended. In a few weeks another Federal threat confronted Lee. Gen. John Pope moved overland from Washington with a newly formed army. His target was also Richmond. Lee shifted his army northward to block the advance. On August 9 Jackson checked Pope’s lead elements at Cedar Run, a few miles south of Culpeper. Then, while Pope warily eyed Lee’s main force, Jackson’s men swept around the Federal right flank and captured Pope’s all-important supply base at Manassas. An angry Pope turned around and started in pursuit of Jackson. Pope soon found Jackson. But Gen. James Longstreet, commanding the other half of Lee’s army, found Pope. The August 28-30 campaign of Second Manassas—or Second Bull Run—resulted. As in the first battle in that area, the Federals met defeat. Pope managed to check a thrust by Lee at Chantilly (September 1), then retired to Washington. Virginia was now clear of Federal forces. The time was ripe, Lee thought, to invade the North. Success might secure Maryland for the Confederacy and bring official recognition to the Southern nation from England and France. Then both foreign powers would send supplies, and possibly troops, to aid the Southern cause. Lee’s grayclad regiments waded across the Potomac River on September 5, 1862. At Frederick, Md., Lee divided his army. Jackson marched southward to capture Harpers Ferry and keep the Valley avenue open, while Lee proceeded westward to Sharpsburg. [Illustration: Harpers Ferry first gained prominence in history with John Brown’s 1859 raid. During the Civil War it was a key point in Eastern military operations.] Meanwhile, Lincoln assigned what was left of Pope’s force to McClellan and sent “Little Mac” in pursuit of the Confederate invaders. On September 14 McClellan fought his way through the passes of South Mountain, Maryland. The next day, as McClellan’s troops converged on Lee, Jackson seized Harpers Ferry. Jackson then hastened northward and rejoined Lee at Sharpsburg late on September 16.