Imperial wars

imperial wars
An artist’s impression of the War of the Spanish Succession, one of the imperial wars initiated by France’s Louis XIV

One contributing factor to the French Revolution was France’s involvement in several imperial wars – or, more specifically, the strain these wars placed on its finances. France’s royal rulers used war and military expansion as a means to expand their own power at home and abroad but it came at a considerable cost to the nation’s treasury.


imperial wars
A map of the French Empire in the 17th, 18th and early 19th centuries

By the late 1600s, France was not just a European continental power – it was an imperial power with foreign territories and possessions exceeded only by those of Britain.

The French Empire included large swathes of central and eastern North America, down to the Mississippi valley and the Gulf of Mexico, islands in the Caribbean Sea and most of north-west Africa. French colonialism was also beginning to take root in eastern India (from Pondicherry to Bengal) and in south-east Asia (in modern-day Thailand, Laos and Vietnam).

The French Empire was supported, supplied and protected by significant naval and mercantile fleets. France’s colonies produced significant amounts of wealth for the nation, providing additional land, raw materials, commodities and labour. Income from colonial resources and profits supercharged the growth of French capitalism in the late 17th and 18th centuries.

Imperial rivalry and military spending

France’s imperial growth also generated tension and conflict with Britain. The royal government increased its military spending dramatically in the second half of the 1600s.

Louis XIV used war both as a foreign policy device and a means of strengthening his domestic power. It is difficult to calculate precise figures for Louis XIV’s military spending program in the late 1600s, however, it certainly exceeded 600 million livres. At the king’s order, the national army was greatly expanded while soldiers were equipped with better artillery pieces and flintlock rifles, a new development in small arms.

The government also improved military infrastructure. Fortresses, barracks and garrison houses were replaced, updated or built anew. This expansion caused an explosion in government expenditure. Before 1660, for example, the government spent an average of 347,000 livres a year on fortresses. By the 1680s, this had blown out to more than eight million livres per annum.

The War of Devolution

imperial wars
Louis XIV used propaganda to portray himself as a successful military leader

By the mid-1660s, Louis XIV was seeking an opportunity to test his revitalised military in war. An opportunity came in the spring of 1667 when he declared war against Spain, following a territorial dispute over the Spanish Netherlands (modern-day Belgium).

The king raised some 50,000 soldiers in less than a week and ordered them across the border to engage the Spaniards. Sensing the propaganda value of this conflict, Louis accompanied his generals and spent much of the war at the front line (albeit with most of the comforts of home). He participated in several battles and sieges and commissioned artists to capture scenes of his bravery and leadership.

The War of Devolution, as this conflict became known, lasted barely a year before Louis was forced to negotiate peace. France’s involvement produced nothing except some small territorial gains in Flanders. In return, the war drained approximately 18 million livres from the royal treasury.

The Nine Years’ War

imperial wars
Louis XIV attending the Siege of Mons (1691) during the Nine Years’ War

This failure did not stop Louis XIV from expanding his national army, which reached 118,000 men by 1672. The king then initiated a war against the Dutch provinces, a six-year conflict that also drew in England and Sweden.

The Franco-Dutch War, also known as the Nine Years’ War (1672-78), was more successful in military terms and produced some important territorial gains, however, it also proved costly. More than one billion livres was spent on the Nine Years’ War. The last year of this war alone cost 219 million livres.

During this war, domestic taxation in France reached its highest-ever levels, yet at its peak taxes were supplying the government with just 160 million livres each year. Even after the peace of 1678, the expenditure of Louis’ government continued to exceed its income. By 1690, taxes were bringing in around 120-125 million livres per annum. This was barely enough to pay for the expenses of the royal court and its bureaucracy, let alone the other costs of government.

War of the Spanish Succession

imperial wars
Philip, Duke of Anjou. War followed his ascension to the Spanish throne

The last of Louis XIV’s imperial wars, the War of the Spanish Succession (1701-14), strained France’s finances to breaking point. It began when Louis XIV installed his grandson, Philip of Anjou, on the vacant Spanish throne, a move that threatened the imperial and trade interests of Britain, Austria and the Dutch.

The War of the Spanish Succession was one of the first ‘world wars’, involving almost all of Europe’s significant powers. It lasted more than a decade, necessitated heavy spending and left all of its major combatants with unprecedented levels of debt. 

As with earlier conflicts, the royal government in France offset the costs of war by borrowing heavily and raising new taxes. Louis’ finance minister Nicolas Desmaretz sustained the government and the war effort by renegotiating or extending loans and introducing a national lottery. In 1710, Desmaretz introduced the dixième, a 10 per cent tax on the earnings of all individuals (the clergy excepted). Yet even an income tax of this size did little to ease France’s deficit. 

Louis legacy of debt

french foreign wars
Maria Theresa, Austrian empress and the mother of Marie Antoinette

When Louis XIV died in 1715 France had spent decades living well beyond its means. Louis had expanded his power not just by waging wars across Europe but also by creating a vast government bureaucracy.

According to a Compte Rendu drawn up by Desmaretz after the king’s death, France was carrying a national debt of two billion livres. The annual interest payments on this debt alone (165 million livres) were more than the government collected in taxes.

France’s debt crisis might have been resolved if the 1700s were a century of peace, prosperity and economic reform – but imperial wars continued to deplete the national treasury and prolong the national debt.

War of the Austrian Succession

In 1740, the Hapsburg princess Maria Theresa, later the mother of Marie Antoinette, ascended to the throne of Austria, Hungary and other principalities in western Europe. Her coronation led to political and territorial disputes that evolved into the War of the Austrian Succession (1744-48).

One of the main protagonists in this war was Louis XV, who argued that a woman could not occupy the Austrian throne, though secretly he hoped to expand French power at the expense of the Hapsburgs.

The war proved more difficult than Louis had expected. It required a much larger mobilisation of troops and was fought not only in Europe but in colonial North America and India. In territorial terms, the War of the Austrian Succession was a net loss for France. It also added 200 million livres to the national debt, a figure that would have been considerably higher had the government not widened the tax base in the mid-1740s.

War for North America

Even more costly to France was the Seven Years’ War of 1756-63.

French involvement in this war began in North America, where France controlled vast tracts of land along the Mississippi and Ohio valleys. As French settlers and traders came into contact with British colonists resident on the east coast, there was tension and conflict over territory, hunting, fishing and the rights to fur-trapping.

In May 1754, a young British-American militia colonel named George Washington ambushed a French brigade in what is now part of Pennsylvania. The French retaliated and within a year, both France and Britain had sent standing armies to America to protect their territory. By April 1756, this fighting had extended to Europe, marking the start of the Seven Years’ War.

Like other imperial wars of the 18th century, the Seven Years’ War also drew in other European powers, including Austria, Russia, Spain, Prussia and the German kingdoms. The first three years of the conflict were successful for France, which secured some important victories and at one point planned an amphibious invasion of England. But by 1759, the tide of war had turned, in part because of France’s inability to fund its military operations. By late 1762, the French government was seeking peace, culminating in the Treaty of Paris in 1763.

Costs of imperial war

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France’s American territory in 1745, all of which was surrendered in 1763

The Seven Years’ War produced little territorial or political change in Europe – but it entailed significant losses for France, which was forced to surrender all its colonial possessions in North America.

The outcome for the French treasury was just as disastrous. France’s involvement in the Seven Years’ War cost around 1.3 billion livres. According to Brecher, the government raised 788 million livres from new loans, 386 million livres from new or extended taxes and 60 million livres by selling venal offices.

Before the war, Louis XV’s government was carrying around 1.2 billion livres in debt. By 1764, this had increased to 2.3 billion livres. This explosion in public debt was compounded by the loss of the American colonies, which drained millions of livres of foreign resources and trade from the French economy.

A longer-term consequence of the Seven Years’ War was increased tensions between Great Britain and her own colonists in America, leading to the American Revolution between 1763 and 1783. France’s last pre-revolutionary war was the American Revolutionary War, which would cost the government 1.3 billion livres.

french revolution

1. From the mid-1660s, France fought a series of foreign and imperial wars that placed its economy under enormous strain and led to an explosion in national debt.

2. Louis XIV waged several wars – to consolidate and expand his own absolutism, to glorify himself as a military leader and to increase French power in Europe.

3. They included the War of Devolution (1667-68), the Nine Years’ War (1672-78) and the War of Spanish Succession (1701-14). They were funded by new or increased taxes and loans, yet still drained the national treasury.

4. His successor Louis XV also involved the nation in significant wars, most notably the War of the Austrian Succession (1744-48) and the Seven Years’ War (1756-63).

5. The last of these, the Seven Years’ War, saw France surrender all of its colonies in continental North America. It also left the nation with a national debt of around 2.3 billion livres.

Citation information
Title: “Imperial wars”
Authors: Jennifer Llewellyn, Steve Thompson
Publisher: Alpha History
Date published: September 13, 2020
Date accessed: May 27, 2023
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