Trained in military and civil engineering at the United States Military Academy, West Point, Beauregard served with distinction as an engineer officer in the Mexican–American War. Following a brief appointment as superintendent of the U.S. Military Academy in 1861, and after Louisiana seceded, he resigned from the United States Army and became the first brigadier general in the Confederate States Army. He commanded the defenses of Charleston, South Carolina, at the start of the Civil War at Fort Sumter on April 12, 1861. Three months later he helped win the First Battle of Bull Run near Manassas, Virginia.
Trained in military and civil engineering at the United States Military Academy, West Point, Beauregard served with distinction as an e?ngineer officer in the Mexican–American War. Following a brief appointment as superintendent of the U.S. Military Acade?my in 1861, and after Louisiana seceded, he resigned from the United States Army and became the first brigadier gene!ral in the Confederate States Army. He commanded the defenses of Charleston, South Carolina, at the start of the Civil War at Fort Sumter on April 12, 1861. Three months later he helped ?win the First Battle of Bull Run near Manassas, Virginia.