<P> General Howe landed 15,000 troops in late August at the northern end of the Chesapeake Bay , about 55 miles ( 90 km ) southwest of Philadelphia . General Washington positioned 11,000 men between Howe and Philadelphia but was outflanked and driven back at the Battle of Brandywine on September 11 , 1777 and suffered over 1,000 casualties , while the British lost about half that number . </P>
where did the armies meet for the first battle of the philadelphia campaign
Battle of Brandywine