After the War of 1812, the British built the Citadels at which two cities as part of Canada's defence?

Discover Canada records this in one direct sentence. The guide writes: By 1814, the American attempt to conquer Canada had failed. The British paid for a costly Canadian defence system, including the Citadels at Halifax and Québec City, the naval drydock at Halifax and Fort Henry at Kingston — today popular historic sites. The two cities the test wants are therefore Halifax and Québec City.

The Citadels were part of a coordinated defence. Discover Canada commits to a list of fortifications built after 1814: the Citadels at Halifax and Québec City, the naval drydock at Halifax, and Fort Henry at Kingston. So the British built defensive infrastructure across multiple Canadian cities — not just one — to prevent any future U.S. invasion.

The defence system answered the War of 1812. Discover Canada writes that "the present-day Canada-U.S.A. border is partly an outcome of the War of 1812, which ensured that Canada would remain independent of the United States." So the British paid for the costly post-1814 fortifications precisely because the War of 1812 had been a near-miss — and the next U.S. attempt had to be deterred. The Citadels at Halifax and Québec City together with Fort Henry at Kingston anchored that deterrent network.

Today these are popular tourist sites. Discover Canada writes that the Citadels and other defence sites are "today popular historic sites." So Halifax's Citadel and Québec City's Citadel — once military fortifications — have become Canadian heritage attractions, drawing visitors who can see the country's 19th-century military infrastructure preserved as historic public spaces. The same period also produced the Rideau Canal — built by the Duke of Wellington as part of the same network of forts to prevent another U.S. invasion.

The question is testing whether new citizens know the two cities where the British built Citadels after the War of 1812. Discover Canada commits to two: Halifax and Québec City. The right test answer matches that.

The wrong answer choices each substitute different cities. Ottawa was chosen as the national capital later (1857) and is not named as a Citadel city. Toronto, Montreal, Winnipeg, and Vancouver are not named in this defence-system context. Kingston has Fort Henry — a different fortification. Only Halifax and Québec City together match the source.