During the French intervention in Mexico, Mexico City is captured by French troops.

The second French intervention in Mexico, also known as the Second Franco-Mexican War (1861–1867), was a military invasion of the Republic of Mexico by the French Empire of Napoleon III, purportedly to force the collection of Mexican debts in conjunction with Great Britain and Spain. Mexican conservatives supported the invasion, since they had been defeated by the liberal government of Benito Juárez in a three-year civil war. Defeated on the battlefield, conservatives sought the aid of France to effect regime change and establish a monarchy in Mexico, a plan that meshed with Napoleon III's plans to re-establish the presence of the French Empire in the Americas. Although the French invasion displaced Juárez's Republican government from the Mexican capital and the monarchy of Archduke Maximilian was established, the Second Mexican Empire collapsed within a few years. Material aid from the United States, whose four-year civil war ended in 1865, invigorated the Republican fight against the regime of Maximilian, and the 1866 decision of Napoleon III to withdraw military support for Maximilian's regime accelerated the monarchy's collapse.

The Second French Empire, officially the French Empire, was the government of France from 1852 to 1870. It was established on 2 December 1852 by Louis-Napoléon Bonaparte, president of France under the French Second Republic, who proclaimed himself Emperor of the French as Napoleon III. The period was one of significant achievements in infrastructure and economy, while France reasserted itself as the dominant power in mainland Europe.

June 10 is the 161st day of the year in the Gregorian calendar; 204 days remain until the end of the year.