“Had McClellan followed his advice, he would have taken Richmond. Had Hooker acted in accordance with his suggestions, Chancellorsville would have been a victory for the nation. Had Meade obeyed his explicit commands, he would have destroyed Lee’s army before it could have recrossed the Potomac.” - Civil war journalist William A. Croffut“General W. F. Smith says: “I have long held to the opinion that at the close of the war Mr. Lincoln was the superior of his generals in his comprehension of the effect of strategic movements and the proper method of following up victories to their legitimate conclusions.’ General J. H. Wilson holds the same opinion; and Colonel Robert N. Scott, in whose lamented death the army lost one of its most vigorous and best-trained intellects, frequently called Mr. Lincoln ‘the ablest strategist of the war.’” - The Observations of John G. Nicolay and John Hay.Quotes from: http://abrahamlincolnsclassroom.org/...nder-in-chief/“That Lincoln had the strategic insight to be a successful general is clear,” - historian Gerald J. Prokopowicz
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Civil War historians know for a fact that there was at least one formal instance (perhaps many more private ones) that Abraham Lincoln seriously considered taking personal command of the Union Army in the field, which would have -in effect- made him a battlefield general. Under the US Constitution, the U.S. President has since the first president, always reserved the right and legal authority to assume overall command and direction over all US forces at any level (micro, field, land, naval, or otherwise). Though Washington and Jackson were probably closest to actually commanding field armies as Presidents (whiskey and nullification crisis), this type of interference and micromanagement by the Commander in-Chief at the tactical level (to my knowledge) has never yet been exercised.
But now that we know that Abraham Lincoln could have in fact made himself a general; what would have happened to the outcome of the Civil War; say in 1862 or 1863 had he indeed done so?
General Abe Lincoln
Personally, I believe President Lincoln possessed all the unique character traits of a successful general (and he certainly would have been better than McClellan). Lincoln was intellectually brilliant, very strategically inclined with his policies; was able to grasp political aims easily within the realm of planning grand military operations (which his generals lacked). He was readily curious and very studious; he would often test fire the latest musket designs on the White House lawn, would pour over dozens of military handbooks at a time, and had a documented obsession for collecting maps. He was also extremely disciplined, both in his work and in his personal life, the ultimate self-made man at that. He knew how to lead men, give speeches, and manage personalities, and he could always be counted on to exercise sound judgment, even during moments of intense friction. He also tended to be flexible in his decision making process but could be firm in its resolve. And finally, he was a courageous character (both physically and mentally) in his own right, the only president ever to voluntary come under direct enemy fire. These solid traits for courage, strategic thinking, and leading men, with a bit of imagination, could make up for Lincoln’s relative inexperience with leading troops, which consisted only as a militia captain during the twilight of the Blackhawk wars.
Where General Lincoln might have failed however, is with handling the political consequences of such a daring move and desperate act by the President. If he defeats a Confederate army and manages to win a decisive battle, there’s a good chance he would be compared to a Napoleon or a Washington and be proclaimed a national hero by the Union press and public at large. But if Lincoln were to lose a battle, which is more than likely going to happen when confronting a deep learning curve, a bewildered Union army, and going up against a formidable Confederate force led by none other than General Lee… well, who does he exactly replace himself with???
But I’ll turn it over from here. I do however consider Lincoln to be one of the greatest leaders to have ever lived, not just as a President or a chief executive, but as an actual problem solver and as someone people would willingly follow, so even if it is just hypothetical, I think it still would have been interesting to see what his command talents would have been like.