 Complete the following phrase:  Trimble first saw combat as part of Thomas J. Stonewall Jacksons spring 1862 campaign in the Shedoah Valley. He distinguished himself in the Battle of Cross Keys by fighting off an attack from Union troops under Maj. Gen. John C. Frémont, and then seizing the initiative to counterattack and rout them. During the Seven Days Battles under Jackson outside of Richmond, Virginia, his brigade had few engagements, but they fought hard at 