How did Britain supported confederation?

Britain supported Canadian Confederation primarily to maintain stability in its North American colonies and to prevent potential expansionist threats from the United States. By encouraging the unification of the provinces, Britain aimed to create a stronger, self-sufficient entity that could better manage its own affairs and defense. Additionally, the British government viewed Confederation as a way to reduce its own financial and military responsibilities in the region. Ultimately, this support helped facilitate the creation of Canada as a confederated nation in 1867.