 Complete the following phrase:  In mid-January 1862, Commander Walke assumed command of the ironclad warship , also assigned to the Western Flotilla. In February 1862, during his tenure as Carondelets commanding officer, Walke led her during the captures of Forts Henry and Donelson which guarded the Tennessee and Cumberland Rivers, respectively. In April, he led her in the passing of heavily fortified Island Number Ten and in the attack on and spiking of shore batteries below New Madrid, Missouri, in 