In April, 1756, about a month after the French victory at Fort Bull, the British colonial militia fought a brief skirmish near Sideling Hill, in Western Pennsylvania with a band of Delawares under the command of the Delaware war chiefs Teweas and Shingas. Teweas and Shingas attacked the British at Fort McCord, near Chambersburg, Pennsylvania, where they killed and scalped 27 British settlers. In response to this raid, three militia bands were sent in pursuit of the Delaware. The British militia caught up with the Delaware three days later at Sideling Hill. Both sides suffered significant losses, however the death of the militia force’s commander, along with 16 others, coupled with the arrival of Delaware reinforcements caused the militia to withdraw.

The British defeat at Sideling Hill encouraged other Delaware and Shawnee tribes to begin raiding along the colonial frontier.