How did the fighting in the North change after 1778?

After 1778, the fighting in the North during the American Revolutionary War shifted significantly with the entry of France into the conflict, which bolstered American morale and resources. The British, initially focused on seizing control of key cities, began to adopt a more defensive strategy, concentrating their efforts in the South. This change led to a series of battles that showcased the growing collaboration between American forces and French allies. Additionally, the focus on southern campaigns marked a strategic pivot away from the northern theaters that had defined the earlier years of the war.