For a year Alabama soil was free from invasion, though the coast was blockaded in the summer of 1861. In February, 1862, Fort Henry, on the Tennessee River, fell, and on the same day Commodore Phelps with four gunboats sailed up the river to Florence. Several steamboats with supplies for Johnston's army were destroyed to prevent capture by the Federals. Phelps destroyed a partly finished gunboat, burned the Confederate supplies in Florence, and then returned to Fort Henry.[64] The fall of Fort Donelson (February 16) and the retreat of Johnston to Corinth left the Tennessee valley open to the Federals. A few days after the battle of Shiloh, General O. M. Mitchell entered Huntsville (April 11, 1862) and captured nearly all the rolling stock belonging to the railroads running into Huntsville. Decatur, Athens, Tuscumbia, and the other towns of the Tennessee valley were occupied within a few days. To oppose this invasion the Confederates had small bodies of troops widely scattered across north Alabama. The fighting was almost entirely in the nature of skirmishes and was continual. Philip D. Roddy, later known as the "Defender of North Alabama," first appears during this summer as commander of a small body of irregular troops, which served as the nucleus of a regiment and later a brigade. Hostilities in north Alabama at an early date assumed the worst aspects of guerilla warfare. The Federals were never opposed by large commands of Confederates, and were disposed to regard the detachments who fought them as guerillas and to treat them accordingly. In spite of the strenuous efforts of General Buell to have his subordinates wage war in civilized manner,[65] they were guilty of infamous conduct. General Mitchell was charged by the people with brutal conduct toward non-combatants and with being interested in the stealing of cotton and shipping it North. He was finally removed by Buell.[66] One of Mitchell's subordinates--John Basil Turchin, the Russian colonel of the Nineteenth Illinois regiment--was too brutal even for Mitchell, and the latter tried to keep him within bounds. His worst offence was at Athens, in Limestone County, in May, 1862. Athens was a wealthy place, intensely southern in feeling, and on that account was most heartily disliked by the Federals. Here, for two hours, Turchin retired to his tent and gave over the town to the soldiers to be sacked after the old European custom. Revolting outrages were committed. Robberies were common where Turchin commanded. His Russian ideas of the rules of war were probably responsible for his conduct. Buell characterized it as "a case of undisputed atrocity." For this Athens affair Turchin was court-martialled and sentenced to be dismissed from the service. The facts were notorious and well known at Washington, but the day before Buell ordered his discharge, Turchin was made a brigadier-general.[67]