 Complete the following phrase:  Although Fort Duquesnes location at the forks looked strong on a mapcontrolling the confluence of three riversthe reality was rather different. The site was low, swampy, and prone to flooding. In addition, the position was dominated by highlands across the Monongahela River, which would allow an enemy to bombard the fort with ease. Pécaudy de Contrecœur was preparing to abandon the fort in the face of Braddocks advance in 1755. He was able to retain it due to the advancing British force being annihilated see below. When the Forbes expedition approached in 1758, the French had initial success in the 