By April, General Morgan was moving against the gap with the remaining three brigades of his division. Morgan's force now included the brigades of Carter, James G. Spears, John F. DeCourcy and Absalom Baird along with a brigade of artillery and cavalry. Meanwhile, Brig. Gen. Carter L. Stevenson brought up the remaining brigades of Seth Maxwell Barton and T.H. Taylor to Col. Rain's defense. Morgan proposed to Maj. Gen. Don Carlos Buell that Chattanooga be threatened in order to force the Confederates to pull their strength away from the Cumberland Gap. At the same time General Edmund Kirby Smith, Confederate commander in eastern Kentucky, proposed a threat against Nashville to draw Union forces away from the gap. Only Morgan got his wish. A Union division under Brig. Gen. James S. Negley attacked Chattanooga on June 7, 1862. This demonstration against Chattanooga was small but it proved the Union forces could strike where they wanted. It was enough for Kirby Smith to reconsider Stevenson's position at the Cumberland Gap.