What was happpening in Philadelphia?

Lord George Germain

When the British began to plan operations for 1777, they had two main armies in North America: Carleton's army in Quebec, and Howe's army in New York. In London, Lord George Germain approved campaigns for these armies which, because of miscommunication, poor planning, and rivalries between commanders, did not work in conjunction. Although Howe successfully captured Philadelphia, the northern army was lost in a disastrous surrender at Saratoga. Both Carleton and Howe resigned after the 1777 campaign.