The Kittanning Expedition, also known as the Armstrong Expedition or the Battle of Kittanning was a raid during the French and Indian War that led to the destruction of the American Indian village of Kittanning, which had served as a staging point for attacks by Delaware (Lenape) warriors against the European-American colonists in the British Province of Pennsylvania. Commanded by Lieutenant Colonel John Armstrong, this raid deep into hostile territory was the only expedition carried out by Pennsylvania during a brutal backcountry war.
Following the death of Braddock, William Shirley assumed command of British forces in North America. At a meeting in Albany in December 1755 he laid out his plans for 1756. In addition to renewing the efforts to capture Niagara, Crown Point and Duquesne, he proposed attacks on Fort Frontenac on the north shore of Lake Ontario and an expedition through the wilderness of the Maine district and down the Chaudière River to attack the city of Quebec. Bogged down by disagreements and disputes with others, including William Johnson and New York's Governor Sir Charles Hardy, Shirley's plan had little support, and Newcastle replaced him in January 1756 with Lord Loudoun, with Major General James Abercrombie as his second in command. Neither of these men had as much campaign experience as the trio of officers France sent to North America. French regular army reinforcements arrived in New France in May 1756, led by Major General Louis-Joseph de Montcalm and seconded by the Chevalier de Lévis and Colonel François-Charles de Bourlamaque, all experienced veterans from the War of the Austrian Succession.