rotestant forces, but it was finally forced to recognise the separation of Portugal (with whom it had been united in a personal union of the crowns from 1580 to 1640) and the Netherlands, and eventually suffered some serious military reverses to France in the latter stages of the immensely destructive, Europe-wide Thirty Years War.
In the latter half of the 17th century, Spain went into a gradual relative decline, during which it surrendered a number of small territories to France; however, it maintained and enlarged its vast overseas empire, which remained intact until the beginning of the 19th century.
The decline culminated in a controversy over succession to the throne which consumed the first years of the 18th century. The War of Spanish Succession was a wide-ranging international conflict combined with a civil war, and was to cost the kingdom its European possessions and its position as one of the leading powers on the Continent. During this war, a new dynasty originating in France, the Bourbons, was installed. Long united only by the Crown, a true Spanish state was established when the first Bourbon king, Philip V, united the crowns of Castile and Aragon into a single state, abolishing many of the old regional privileges and laws.
The 18th century saw a gradual recovery and an increase in prosperity through much of the empire. The new Bourbon monarchy drew on the French system of modernising the administration and the economy. Enlightenment ideas began to gain ground among some of the kingdom's elite and monarchy. Military assistance for the rebellious British colonies in the American War of Independence improved the kingdom's international standing.
Napoleonic rule and its consequences
In 1793, Spain went to war against the new French Republic, which had overthrown and executed its Bourbon king, Louis XVI. The war polarised the country in an apparent reaction against the gallicised elites. Defeated in the field,
