Fought in 1870 and 1871, the Franco-Prussian War was fought between France and Prussia as a result of Prussian chancellor Otto von Bismarck and his agenda to unify the German Empire.
 
 
Recommended Resources
Consists of details about the war and the Paris Commune, how the war came about, and numerous images of battles and people who were instrumental in the fight.
http://www.bl.uk/reshelp/findhelpsubject/history/francoprussionwar/franceprussian.html
eHistory.com: The Siege of Paris
Focuses on the Siege of Paris, the actions of the Emperor Napoleon Bonaparte III, and the effects of the war on Paris.
http://ehistory.osu.edu/world/articles/ArticleView.cfm?AID=65
Delves into the causes of the Franco-Prussian War, comparisons of the armies, and individual battles, including the Battles of Mars-La-Tour, Gravelotte, and Wissembourg.
http://francoprussianwar.com/
History of the Franco Prussian War
Created by a group of American reenactors and enthusiasts of the history of the Franco-Prussian War, this website goes into painful detail about the French Army, the Prussian Army, and the history of the war.
http://www.oocities.org/fpwar1870/
How Stuff Works: Franco-Prussian War
Sets forth the background and causes of the war, the actual battles, and the outcome of the Franco-Prussian War.
http://history.howstuffworks.com/european-history/franco-prussian-war.htm