 A large portion of the Union survivors, an estimated 2,200 to 2,400 men, were captured, but their sacrifice bought time for Grant to establish a final defense line near Pittsburg Landing.While dealing with the Hornet's Nest, the South suffered a serious setback with the death of their commanding general.Albert Sidney Johnston had received a report from Breckenridge that one of his brigades was refusing orders to advance against a Union force in a peach orchard.