How did Generals Robert E. Lee and Stonewall Jackson make victories in the East possible?

They achieved this by bringing together all the garrisons that were spread across Virginia, to become one formidable force in the Shenandoah Valley.

Explanation:

Generals Robert E. Lee and Stonewall Jackson were able to achieve victory in the East, by converting the different garrisons in Virginia to one strong force that was able to launch an attack on the federal troops in the Shenandoah Valley. This attack came as a surprise to the Federal forces.

General Jackson later launched an attack on May 31, against the McClellan forces in a battle known as the Battle Of Seven Pines where he was seriously injured. General Lee took over after him and galvanized the troop to launch another attack on McClellan and General Fitz-John with the help of General Jackson.

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