Battle Of Pontarlier

The Battle of Pontarlier, a rather grim epilogue to a conflict that had already bled itself dry, unfolded near the French town of Pontarlier and its neighboring stronghold, La Cluse-et-Mijoux . This final military operation of the Franco-Prussian War took place between January 29 and February 2, 1871, a period marked by a fragile ceasefire between the recently consolidated German Empire and the beleaguered French Republic . The engagements saw the German Army of the South, under the command of Lieutenant General Edwin von Manteuffel , decisively overcome the French Eastern Army, led by General Justin Clinchant . This defeat was so profound that it compelled the French Eastern Army to seek refuge in neutral Switzerland . The relentless efforts of General August von Werder in the preceding Battle of the Lisaine , combined with Manteuffel’s success at Pontarlier, effectively shattered any lingering hopes the Eastern Army might have harbored for a successful assault on southern Germany. Simultaneously, this decisive defeat at Pontarlier finally broke the will of the French Interior Minister Léon Gambetta , forcing him to abandon further resistance against the German forces. The cost for the French was immense, a heavy toll in terms of both captured soldiers and materiel, effectively marking the inglorious end of their organized military efforts.

Background

As December 1870 drew to a close, the French minister Charles-Denis Bourbaki found himself at the helm of the Eastern Army, tasked with the critical mission of relieving the besieged fortress of Belfort . However, his ambitions were decisively thwarted by the German general August von Werder during the Battle of the Lisaine in the early days of 1871. Disheartened and outmaneuvered, Bourbaki and his exhausted troops retreated to Besançon on January 22, 1871. The situation rapidly deteriorated with the appearance of another German army, commanded by General Von Manteuffel, which threatened to trap the French Eastern Army between two formidable forces. The desperate circumstances forced Bourbaki to order a retreat towards Pontarlier, a move that represented their last viable option. Overwhelmed by the disgrace of his army’s predicament, the general, already burdened by misfortune, relinquished command of his corps to General Clinchant on January 24. In a moment of profound despair, he then attempted to take his own life, though he miraculously survived the attempt.

On that same fateful day, Manteuffel’s forces, executing a swift eastward march, crossed the Doubs River and seized control of the strategic canyons along the Swiss border, effectively tightening the noose around the French forces and coordinating with Werder’s operations. Meanwhile, Clinchant had managed to consolidate the remnants of his legions in Pontarlier, with Manteuffel’s army relentlessly pursuing them. On January 29, Manteuffel initiated a comprehensive offensive. By that afternoon, the vanguard of the German 14th Division had successfully engaged and routed the French rear guard at Sombacourt and Chaffois , pushing them back towards Pontarlier. Concurrently, elements of the German 2nd Army clashed with French forces near Les Planches, aiming to block any potential escape route for Clinchant into Switzerland. Despite managing to delay the French advance, the strategic implications of this engagement were somewhat mitigated when Manteuffel redirected the 2nd Army towards Frasne . The sheer exhaustion of the French troops rendered any thought of a southern escape route utterly untenable for Clinchant. Following a full day of intense fighting on January 30, the German 2nd Army launched a successful assault on Frasne, further dislodging the French forces and forcing their continued retreat.

The Battle

On this day, news of the armistice agreement, tentatively reached between the warring nations on January 28, reached Clinchant. This development offered a glimmer of hope for negotiation, but Manteuffel remained unyielding. Nevertheless, in a fierce engagement on January 31, Manteuffel’s forces secured the crucial roads at St. Marie, strategically positioned in the mountainous terrain south of Pontarlier. By midday on February 1, 1871, the German army was poised to launch its final assault on Pontarlier itself.

Earlier that day, General Clinchant had managed to secure an agreement with the Commander-in-Chief of the Swiss Army . This accord granted his beleaguered army permission to cross the border and surrender their arms in Switzerland. The retreat commenced shortly after the finalization of this agreement. In the afternoon, a brigade, under the command of Du Trossel of the 2nd North German Army, successfully breached the town’s defenses. The French army endured significant casualties during this final push. Following this decisive victory, Du Trossel’s forces pursued the retreating enemy through the mountain passes, advancing towards the formidable fortresses of Larmont and Joux , where they encountered some resistance before ultimately overcoming the remaining French defenses. The last vestiges of French resistance crumbled, and the retreat into Switzerland was ultimately a calamitous affair for the French army. The relentless three-week campaign orchestrated by Von Manteuffel, characterized by intense marches and fierce battles, culminated in a significant and undeniable victory. It stood as a testament to the formidable capabilities and the audacious, strategic brilliance of the German army during this period.