Around 10:00 a.m. on September 9, Burnside sent a message to Frazer stating he now had a large enough force to carry the gap by storm. The large Union force, little combat experience and low morale (after news of Vicksburg and Gettysburg) all factored into Frazer's decision to surrender. Around 3:00 p.m. Frazer agreed to an unconditional surrender of all the Confederates guarding the Cumberland Gap. Between 100-300 men managed to escape through DeCourcy's lines after the surrender had taken place, but the rest of the soldiers, arms, 14 pieces of artillery and the strategic location were now in Union control. This was the last major operation against the Cumberland Gap and it would remain in Union hands for the rest of the war.