The relationship between Canada and the United States is often hailed as one of the most peaceful and enduring friendships between two neighboring countries in modern history. With a shared border stretching over 8,800 kilometers — the longest undefended border in the world — these two nations have cultivated strong ties across political, economic, military, and cultural spheres. However, the deep-rooted Canada-U.S. friendship did not happen overnight. It evolved through centuries of conflict, cooperation, and mutual understanding. Early Encounters: From Rivalries to Respect Colonial Conflicts and the Path to Peace Before Canada and the United States became friendly neighbors, they were once colonial territories caught in the power struggles of European empires. During the 17th and 18th centuries, the French and British vied for control over North America. The American colonies and New France (now parts of modern Canada) were often at odds, especially during conflicts like the French a...