U.S.-French relations are long-standing, complex, and primarily cooperative in nature. Various crises have punctuated long periods of stability in the alliance, but after each conflict the Franco-American friendship emerged stronger than ever. Official U.S.-French relations began during the early stages of the American Revolution, when Louis XVI’s regime came to America’s aid by providing money, arms, and military advisers. French assistance, best symbolized by the Marquis de Lafayette, was essential in the revolution’s success. The subsequent French Revolution and Napoleon Bonaparte’s rise to power also benefitted the United States when Napoleon’s woes in Europe and the Caribbean forced him to sell the entire Louisiana territory to the United States, in 1803. Franco-American economic and cultural contacts increased throughout the 19th century, as trade between the two countries prospered and as Americans flocked to France to study art, architecture, music, and medicine. The French gift of the Statue of Liberty in the late 19th century solidified Franco-American bonds, which became even more secure during World War I. Indeed, during the war, the United States provided France with trade, loans, military assistance, and millions of soldiers, viewing such aid as repayment for French help during the American Revolution. World War II once again saw the United States fighting in France to liberate the country from Nazi control. The Cold War complicated the Franco-American relationship in new ways as American power waxed and French power waned. Washington and Paris clashed over military conflict in Vietnam, the Suez Crisis, and European security (the North Atlantic Treaty Organization or NATO, in particular) during the 1950s and 1960s. Ultimately, after French President Charles de Gaulle’s retirement, the Franco-American alliance stabilized by the mid-1970s and has flourished ever since, despite brief moments of crisis, such as the 2003 Second Gulf War in Iraq.