France was one of the leading participants in the Seven Years' War, which in fact lasted nine years between 1754 and 1763. France entered the war with the hope of achieving a lasting victory against Prussia, Britain, and their German allies and with the hope of expanding its colonial possessions.
While the first few years of war proved successful for the French, in 1759 the situation reversed and they suffered defeats on several continents. In an effort to reverse their losses, France finished an alliance with their neighbor, Spain, in 1761. In spite of this the French continued to suffer defeats throughout 1762 eventually forcing them to sue for peace. The 1763 Treaty of Paris confirmed the loss of French possessions in North America and Asia to the British. France also finished the war with very heavy debts, which they struggled to repay for the remainder of the 18th century which later led to the French Revolution in 1789 and the Haitian Revolution in 1791.