The people wanted a leader. General Scott, who had fought at Niagara and Lundy's Lane, who had captured the city of Mexico, was too old and infirm to take the field. General McDowell, although his plan of attack at Bull Run was approved, had failed of victory. General McClellan had been successful in the skirmishes at Philippi and at Rich Mountain. He was known to be a good engineer. He had been a visitor to Russia during the Crimean war, and had written a book upon that war, which was published by Congress. He was a native of Pennsylvania and a resident of Ohio when the war broke out. The governors of both of those States sent him a commission as a brigadier-general, because he had had military experience in Mexico, and because he was known as a military man, and because they were in great need of experienced men to command the troops. Having all these things in his favor, he was called to Washington and made commander of the Army of the Potomac on the 27th of July. He immediately submitted a plan of operations to the President for suppressing the rebellion. He thought that if Kentucky remained loyal, twenty thousand men moving down the Mississippi would be sufficient to quell the rebellion in the West. Western Virginia could be held by five or ten thousand more. He would have ten thousand protect the Baltimore and Ohio Railroad and the Potomac River, five thousand at Baltimore, twenty thousand at Washington, and three thousand at Fortress Monroe. One grand army for active operations was needed, to consist of two hundred and twenty-five thousand infantry, six hundred pieces of field artillery, twenty-five thousand cavalry, and seven thousand five hundred engineers, making a total of two hundred and seventy-three thousand men. In his letter to the President, General McClellan says: "I propose, with the force which I have requested, not only to drive the enemy out of Virginia, and occupy Richmond, but to occupy Charleston, Savannah, Montgomery, Pensacola, Mobile, and New Orleans; in other words, to move into the heart of the enemy's country, and crush the rebellion in its very heart."[2] [Footnote 2: General McClellan's Report, p. 4.] It was found a very difficult matter to obtain arms for the soldiers; for President Buchanan's Secretary of War, Floyd, had sent most of the arms in Northern arsenals to the South before the war commenced. But, notwithstanding this, so earnest were the people, and so energetic the government, that on the 1st of October, two months from the time that General McClellan took command, there were one hundred and sixty-eight thousand men in the Army of the Potomac, with two hundred and twenty pieces of artillery; besides this, the government had a large army in Kentucky, and another in Missouri. The Rebels had large armies in those States, and were making great efforts to secure them to the Confederacy. It was not possible to send all the troops to Washington, as General McClellan desired.