History of Portugal (1640–1777) put to the test in 1762 when Spain invaded aided by France, during the Seven Years' War. Britain invoked its alliance with Portugal and sent troops. Several months later, the conflict was settled with comparatively little fighting. In 1777, Spain and Portugal signed the Treaty of San Ildefonso, which mainly resolved a number of border disputes between their South American colonies. During the Age of Enlightenment, Portugal was considered one of Europe's unenlightened backwaters; it was a country of three million with 200,000 people in 538 monasteries in 1750. Melo seems to have been deeply embarrassed by Portugal's much lamented
U.S. Customs and Border Protection quality of life in border communities. In some areas, Agents are deputized or have peace-officer status and use it to enforce local and state/territory laws. More than 20,000 Border Patrol Agents safeguard nearly 6,000 miles of land border the United States shares with Canada and Mexico, and more than 2,000 miles of coastal waters. One of the most important activities for a United States Border Patrol Agent is "line watch". This involves the detection, prevention and apprehension of terrorists, illegal aliens and smugglers of both aliens and contraband at or near the land border by maintaining surveillance from a covert