<P> The Chancellorsville Campaign began with the crossing of the Rappahannock River by the Union army on the morning of April 27 , 1863 . Union cavalry under Maj. Gen. George Stoneman began a long distance raid against Lee 's supply lines at about the same time . This operation was completely ineffectual . Crossing the Rapidan River via Germanna and Ely 's Fords , the Federal infantry concentrated near Chancellorsville on April 30 . Combined with the Union force facing Fredericksburg , Hooker planned a double envelopment , attacking Lee from both his front and rear . </P>
<P> The Chancellorsville Campaign began with the crossing of the Rappahannock River by the Union army on the morning of April 27 , 1863 . Union cavalry under Maj. Gen. George Stoneman began a long distance raid against Lee 's supply lines at about the same time . This operation was completely ineffectual . Crossing the Rapidan River via Germanna and Ely 's Fords , the Federal infantry concentrated near Chancellorsville on April 30 . Combined with the Union force facing Fredericksburg , Hooker planned a double envelopment , attacking Lee from both his front and rear . </P>
who attacked first in the battle of chancellorsville
who attacked first in the battle of chancellorsville
Union
Union