US President Abraham Lincoln summoned General George McClellan to the capital. McClellan took charge of Federal troops in Washington DC on July 26, 1861. At that time he became Lincoln's most influential military adviser. In consultation with Lincoln and General Scott, McClellan developed a general plan of operations that he envisioned to be the actions of of the Union's strategic course of action. As with any military plans, the movements of Southern forces, would alter the Union's general plans. With that said, McClellan's overall initial strategies would become the basis of Federal operations against the Confederacy.
At the end of July, 1861, Union General George B. McClellan was in charge of the Division of the Potomac. Under McClellan, was General K. F. Mansfield, in command of the District of Columbia and General McDowell in command of a division.
The Federal Army of the Potomac was led by Major General George McClellan in the Autumn of 1862, and would be replaced later that Fall, in November, by Major General Ambrose E. Burnside. The change in military leadership was a surprise to many people in the North who supported General McClellan. President Lincoln waited until the off-year elections of 1862 were finished before he relieved McClellan. Playing politics with top generals such as Burnside and McClellan were not in the Union's best interests.
Reportedly, General in Chief George B. McClellan sought to have General Dix command the defenses of Washington DC because Dix was a Democrat. McClellan had never ceased trying to find Democrats in political office to meet his agenda of taking over total control of Union policy regarding the US Civil War. This was true also with the Northern press. Especially with the nation's largest newspaper, the New York Herald, a solidly Democratic leaning newspaper.
On July 25, 1862, General in Chief Henry W. Halleck visits the headquarters of General McClellan at his Virginia headquarters in Virginia. He brings General Ambrose Burnside with him. Burnside and McClellan are friends. Halleck gives McClellan a choice, and both of them will be a serious problem for McClellan. McClellan must either restart his Peninsula campaign or make a total withdrawal from Harrison's Landing. These troops will be given to John Pope's new Army of Virginia. McClellan's anger with the Lincoln government intensifies. Reportedly he has been receiving letters from his supporters in the North to march on Washington DC and take control of the government. One thing is certain, Burnside reports that anti-government agitation among McClellan's officers seem treasonous to him. The Army of the Potomac is piece by piece brought back to Washington DC to help form General Pope's new army.
Two corps of the Army of the Potomac were under General McClellan's control at Alexandria. They were General Sumner's Second Corps and General Franklin's Sixth Corps. This totaled 25,000 troops. McClellan saw General Pope as incompetent and did not want to waste good troops to save Pope's hopeless situation. General in Chief Henry W. Halleck ordered McClellan to send these troops to reinforce Pope. McClellan held back these troops as long as possible. McClellan also urged General Pope to not engage the Rebel troops and to retreat to the north.
McClellan was relieved of his command on October 7, 1862, by President Lincoln for a number of reasons, including being insubordinate to the President, fighting with General Winfield Scott, and for being much too cautious with the enemy, often failing to press forward to win a battle.
He was the general of the Continental Army.
After the Union defeat at the First Battle of Bull Run, President Lincoln called Major General George B. McClellan to come to Washington DC and organize the Union army there into a well organized fighting force. Later, after the Union defeat at the Second Battle of Bull Run under Major General Pope, McClellan was again asked to command Union armies in the East. Pope had failed and McClellan was put in charge again of the Army of the Potomac. He would again have to deal with the Army of Northern Virginia under the command of Lieutenant General Robert E. Lee.
As the Union's general in chief, George B. McClellan was responsible for the Union's war efforts to end the Southern rebellion. In January of 1862, McClellan began pushing Major General Henry Halleck to prevent Confederate forces in neutral Kentucky from being reinforced. He wanted Halleck to aid General Buell in that slave border state. He ordered Halleck to send one or two divisions supported by gunboats sent up the Cumberland River. Both McClellan and General Buell agreed that Columbus, Kentucky had to be taken out of Rebel control.
Possibly Place the mines under federal control.. Krispy
Union General Winfield Scott informed his subordinate, General George B. McClellan that his plan could not be carried out. Winfield pointed out that McClellan's troops were volunteers with a three month enlistment. These troops would never reach Richmond before the regiments would be free to return home. Additionally, Winfield pointed out that McClellan had ignored basic rules of logistics. By crossing western Virginia, he would have no chain of supply for his troops. Winfield scuttled McClellan's plan against Richmond. As an aside, these two men would continue to be at odds with each other, causing Scott to end his control of Union forces.
As far as Union General George B. McClellan was concerned he had saved the Union at the Battle of Antietam. With Maryland now safe from invasion, McClellan wanted two things. One was the removal of Secretary of War, Edwin Stanton and the removal of Henry Halleck as general in chief. McClellan wanted to be in charge of the Union's entire war effort. He wanted control of the war without presidential or congressional interference. He believed that meeting of governors of the Northern states sponsored by Pennsylvania Governor Andrew Curtin would be the forum which would endorse McClellan's views. At this time, public support of McClellan and favorable newspaper support from such publications as Harper's Weekly, would help him achieve his goals.