Winfield had specific tactic in which he waged war, although they were originally derided, his war plans an tactics were eventually one of the main tools that helped the Union accomplish a successful war. During his fifty-three years of service, General Scott made a significant impact on the professionalism of the U.S. Army. During his first few months in the War of 1812, he witnessed firsthand the troubles inherent in a large reliance on ill-trained citizen militia. In 1814 to counter what he had experienced, Winfield trained rigorously with American soldiers in Buffalo, New York. That summer he demonstrated was a well group of disciplined troops could do in the decisive victory near Chippewa Creek and the bloody stalemate along Lundy's Lane.
War to Winfield was much like a game of chess, matching brains as well as brawn. During the Mexican-American War in the Mexico City campaign in 1947, he repeatedly maneuvered his opponents out of their defensive positions. His chief engineer, Captain Robert E. Lee, helped scout the route for some of these flank maneuvers, thus molding his own skills for a later war. Winfield was not averse to using frontal assault style attacks, preferred though to win victories by siegecraft or turning movements.HIs tactics were not always glamorous as they might have been when he relied on a the bayonet charge but neither were they as costly, upon duke of Wellington proclaimed him the greatest soldier living.