French Army (1939–1940)

French Army (1939–1940)
source
Unit name	French Army (1939–1940)
Native name	Armée française (1939–1940)
Dates	1939–1940
Country	France
Allegiance	Third Republic
Branch	French Army
Type	Army
Role	Land warfare
Notable commanders	Maurice Gamelin, Maxime Weygand

French Army (1939–1940) The French Army at the outbreak and early phase of World War II combined units raised under the Third Republic with formations reconstituted after the Interwar period and the Treaty of Versailles, and it faced the German invasion during the Battle of France and the Battle of Belgium in 1940. Political debates involving Paul Reynaud, Édouard Daladier, and strategic planners such as Maurice Gamelin and Maxime Weygand shaped mobilization, while coordination with United Kingdom, Belgium, and Netherlands influenced operational planning during the Phoney War.

Background and Mobilization

On the eve of World War II, the French Army mobilized under conscription laws stemming from the Law of 1872 and reforms influenced by the Maginot Line construction, integrating reserve divisions and colonial troops from French Algeria, French Indochina, and French West Africa. Mobilization orders issued after the German invasion of Poland invoked alliances with the United Kingdom and prompted deployments to the Saar region, forward defenses along the Franco-German border, and reinforcement of the Maginot Line sectors overseen by commanders tied to the General Staff (France). Political crises during mobilization involved François Darlan, Philippe Pétain, and parliamentary debates in the Chamber of Deputies.

Organization and Command Structure

The high command structure featured the Grand Quartier Général under Chief Maurice Gamelin and later Maxime Weygand, with subordinate commands including numbered field armies (First Army, Second Army, etc.), army groups, and corps drawn from metropolitan France and colonial formations. Units ranged from active divisions such as the 1st Infantry Division and armored units like the 2e Division Cuirassée to cavalry and fortress troops assigned to the Maginot Line fortress sectors, and aircraft support coordinated with the Armée de l'Air. Liaison and joint operations required interaction with Royal Air Force, British Expeditionary Force, and Belgian General Staff elements during the Dyle Plan implementation.

Equipment and Armaments

French materiel included tanks such as the Char B1, Somua S35, and Renault R35, artillery pieces like the 75 mm field gun M1897, small arms including the MAS-36, and anti-tank weapons such as the 47 mm APX anti-tank gun. Logistics employed transport from SNCF rail mobilization to motorized units using Citroën and Renault vehicles, while fortifications utilized concrete works and MAGN-style armament in Maginot ouvrages. Air support came from aircraft like the Dewoitine D.520 and Bloch MB.152, and naval coordination involved elements of the Marine nationale and ports at Cherbourg and Le Havre.

Doctrine and Tactical Employment

French doctrine emphasized positional defense shaped by lessons from the Battle of Verdun and the First World War, relying on static fortifications like the Maginot Line, planned counteroffensives under the Dyle Plan, and the use of armored units as breakthrough or mobile reserve forces inspired by interwar debates involving theorists such as Charles de Gaulle and critics of German Blitzkrieg. Tactical employment reflected conservative use of tanks concentrated in independent Division Légère Mécanique and armored divisions rather than dispersed with infantry, combined-arms coordination challenges with the Armée de l'Air and artillery, and logistical doctrines influenced by experiences from the Rif War and colonial policing.

Campaigns and Operations (1939–1940)

During the Phoney War, French forces conducted limited offensives in the Saar Offensive and maintained frontier defenses while coordinating with British Expeditionary Force deployments in northern France and Belgium. In May–June 1940 the German Manstein Plan and Sichelschnitt maneuver through the Ardennes bypassed the Maginot Line, precipitating the Battle of Sedan, subsequent breakthroughs at Meuse crossings, and encirclement operations culminating in the Battle of Dunkirk and evacuation of the BEF. Major engagements involved the Battle of Belgium, Battle of the Meuse, and fighting in Hauts-de-France, Champagne, and near Paris, with key commanders such as Gerd von Rundstedt and Erich von Manstein opposing French formations under Weygand and divisional leaders.

Performance, Failures, and Analysis

Operational failures have been attributed to command indecision involving Maurice Gamelin and Maxime Weygand, doctrinal mismatches compared with the Wehrmacht's Blitzkrieg tactics, inadequate combined-arms integration, slow mobilization of the mechanized reserves, and strategic surprise in the Ardennes maneuver; logistical strains affected frontline units supplied from depots in Reims and Metz. Historians and analysts including Julian Jackson, Antony Beevor, and Correlli Barnett have debated the roles of political leadership from Édouard Daladier and Paul Reynaud, industrial capacity linked to firms like Renault and Société Anonyme des Ateliers de Construction de la Loire, and intelligence failures related to signals and reconnaissance compared against Enigma decrypts and Ultra impacts on Allied planning.

Legacy and Post-Armistice Disposition

After the Armistice of 22 June 1940 elements of the French Army were demobilized, interned, or incorporated into the Vichy France forces under leaders such as Philippe Pétain and commanders like Admiral François Darlan, while others joined the Free French Forces led by Charles de Gaulle and fought in campaigns including Operation Torch and the Liberation of Paris. Equipment was captured by the Wehrmacht or scuttled in ports such as La Rochelle; postwar analyses influenced Cold War French rearmament, NATO debates involving Georges Bidault and René Pleven, and institutional reforms within the French Army and the Ministry of Armed Forces.

Category:Military units and formations of France in World War II