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Hundred Days Campaign

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Hundred Days Campaign
NameHundred Days Campaign
PartofFranco-Prussian War
Date20 November – 28 December 1870
PlaceNorthern France, Île-de-France, Picardy
ResultFrench Third Republic tactical successes; strategic collapse leading to Siege of Paris aftermath
Combatant1Armée du Nord; Army of the Loire; Army of the Rhine
Combatant2Prussian Army; North German Confederation; Bavarian Army
Commander1Louis-Jules Trochu; Léon Gambetta; General Faidherbe; General Bourbaki
Commander2Helmuth von Moltke the Elder; Prince Friedrich Karl of Prussia; Count von Blumenthal
Strength1~180,000
Strength2~200,000
Casualties1heavy
Casualties2heavy

Hundred Days Campaign

The Hundred Days Campaign was a late-1870 string of French field offensives and defensive actions during the Franco-Prussian War that briefly checked Prussian advances and produced notable engagements across Northern France. Sparked by efforts from the Provisional Government of the French Republic led by Léon Gambetta and regional commanders such as Jean-Baptiste Faidherbe and Charles Bourbaki, the campaign involved armies raised in provinces including Brittany, Normandy, and Alsace-Lorraine. Despite localized successes, the campaign failed to relieve the besieged Paris Commune? and culminated in wider strategic defeat and political crisis for the French Third Republic.

Background

Following decisive battles such as Battle of Sedan and the fall of Napoleon III at Sedan (1870), France fractured into competing centres of power including the Government of National Defense and regional authorities in Bordeaux and Tours. The collapse of the Second French Empire prompted mass mobilization across departments like Nord (French department) and Somme (department), with politicians including Jules Favre and military figures such as Marshal MacMahon influencing deployments. Prussian forces under Helmuth von Moltke the Elder and royal commanders like Prince Friedrich Karl of Prussia sought to encircle and besiege Paris while occupying strategic rail nodes like Amiens station and river crossings at Meuse and Oise River.

Prelude to the Campaign

After the fall of Sedan, Léon Gambetta left besieged Paris by balloon to organize provincial resistance from Tours; he coordinated with insurgent generals such as Faidherbe and Vinoy to raise the Armée de la Loire and the Armée du Nord. Mobilization relied on recruitment centers at locations like Rennes and Lille and on reserve formations previously associated with institutions including the École Spéciale Militaire de Saint-Cyr. Logistics were planned around rail links including the Chemins de fer de l'État and telegraph networks controlled by ministries in Versailles and Bordeaux. Intelligence reports referenced Prussian concentrations near Beauvais and Compiègne, prompting counter-maneuvers and concentration of forces at staging areas such as Amiens and Arras.

Operations and Battles

Major clashes occurred in a sequence of engagements including actions near Amiens, Bapaume, and Béthune. The French achieved tactical victories at battles reminiscent of earlier encounters like Battle of Coulmiers, while Prussian corps countered with well-coordinated assaults informed by doctrines practiced in the Austro-Prussian War. Engagements featured infantry formations from units akin to the Gardes Mobiles opposing Prussian divisions from the Prussian Guard and allied contingents from Bavaria and Saxony. Notable encounters included contested river crossings at the Oise, rear-guard fights around Saint-Quentin, and flank attacks launched from positions near Compiègne Forest. Artillery duels involved guns similar to those used at the Siege of Metz and saw the employment of rifled ordnance developed after engagements like Crimean War experiments.

Commanders and Forces

French leadership included political generals and career officers: Léon Gambetta as organizer, field commanders such as Jean-Baptiste Faidherbe, Charles Bourbaki, Louis-Jules Trochu, and divisional leaders drawn from cadres with experience in campaigns like Algerian conquest of the 1840s. Opposing them were commanders from the Prussian General Staff including Helmuth von Moltke the Elder, operational commanders such as Prince Friedrich Karl of Prussia, corps commanders like Albrecht von Roon-era lieutenants, and allied German princes from Bavaria and Württemberg. Units included mobilized line infantry, reserve jägers inspired by traditions in Prussian Army reforms, artillery batteries from arsenals such as Krupp-equipped depots, and nascent engineer detachments modeled after those seen in Austro-Prussian War campaigns.

Logistics and Tactics

French logistics attempted to exploit regional railway networks including lines through Amiens and Rouen and to use depot towns such as Le Havre for arms and materiel. Prussian logistics used strategic rail staging similar to methods refined during the Wars of German Unification, with supply hubs at Metz and Strasbourg. Tactically, French forces employed massed infantry assaults, light cavalry scouting in the fashion of Chasseurs d'Afrique traditions, and attempts at combined-arms actions mirroring doctrines from the Crimean War and Italian Wars of Unification. Prussian tactics emphasized artillery preparation, disciplined volleys, and rail-facilitated concentration of force learned from victories at Königgrätz and Sadowa.

Political and Diplomatic Context

The campaign unfolded amid diplomatic maneuvers involving the United Kingdom, the Russian Empire, and the United States of America, each monitoring balance-of-power shifts after the collapse of the Second French Empire. Domestic politics in France saw tensions between leaders like Jules Favre, Adolphe Thiers, and radicals in provincial assemblies, while monarchist and republican factions vied for influence in the wake of Napoléon III’s capture. Internationally, the North German Confederation leveraged victories to expedite negotiations that would culminate in diplomatic outcomes influenced by precedents like the Treaty of Frankfurt (1871) and treaties following the Austro-Prussian War.

Aftermath and Consequences

Although the French achieved temporary operational gains, strategic realities such as the encirclement of Paris and the superior coordination of the Prussian General Staff resulted in the campaign’s failure to alter the war’s outcome. The later Siege of Paris and the armistice that preceded the Treaty of Frankfurt (1871) sealed territorial and political consequences, including the annexation of Alsace-Lorraine and the proclamation of the German Empire at Versailles. The campaign influenced military reforms across Europe, informing changes in armies including those of France, Prussia, and Austria-Hungary, and shaped the careers of figures such as Léon Gambetta, Charles Bourbaki, and Helmuth von Moltke the Elder.

Category:Military campaigns of the Franco-Prussian War