Russian Winter, General Winter, General Frost, or General Snow refers to the harsh winter climate of Russia as a contributing factor to the military failures of several invasions of Russia. A contributing factor that impairs military maneuvering is "General Mud" ("rasputitsa"), a phenomenon that occurs with autumnal rains and spring thaws in Russia, whereby transport over unimproved roads is made difficult by muddy conditions.
Winter as a contributing factor to military defeat
In his study of winter warfare in Russia, author Allen F. Chew concludes that "General Winter" was a 'substantial contributing factor'—not a decisive one—in the military failures of both Napoleon's and Hitler's invasions of Russia. He notes that Napoleon's army was already suffering significant attrition before winter, owing to lack of supplies, disease, desertions and casualties of war. Likewise, Hitler's Wehrmacht had already suffered 734,000 in casualties and was running low on supplies in November 1941, before the arrival of winter.
Swedish invasion of 1707
In the Great Northern War, Charles XII of Sweden invaded Russia in 1707. The Russians retreated, adopting a scorched-earth policy. This winter was the most brutal of the 18th century, so severe that the seaport of Venice froze during the Great Frost of 1709. Charles' 35,000 troops were crippled, and by spring only 19,000 were left. The Battle of Poltava in late June 1709 sealed the end of the Swedish Empire.
French invasion of 1812
Napoleon's Grande Armée of 610,000 men invaded Russia, heading towards Moscow, in the beginning of summer on 24 June 1812. The Russian army retreated before the French and again burnt their crops and villages, denying the enemy their use. Napoleon's army was ultimately reduced to 100,000. His army suffered further, even more disastrous losses on the retreat from Moscow, which started in October. Multiple sources concur that winter and its aftermath was only a contributing factor to Napoleon's defeat and retreat.
To counter claims that the French defeat resulted from winter weather, Denis Davydov published a military historical analysis, titled "Was it Frost that Devastated the French Army in 1812?", wherein he demonstrated that the French suffered casualties in battles during relatively mild weather and outlined multiple causes for their defeat. He drew on both his direct observations and on those of foreign commentators, including French authors.
According to Chew in 1981, the main body of Napoleon's Grande Armée, initially at least 378,000 strong, "diminished by half during the first eight weeks of his invasion, before the major battle of the campaign. This decrease was partly due to garrisoning supply centres, but disease, desertions, and casualties sustained in various minor actions caused thousands of losses. At the Battle of Borodino on 7 September 1812—the only major engagement fought in Russia—Napoleon could muster no more than 135,000 troops and he lost at least 30,000 of them to gain a narrow and pyrrhic victory almost 600 miles inside hostile territory. The sequels were his uncontested and self-defeating occupation of Moscow and his humiliating retreat, which began on 19 October, before the first severe frosts later that month and the first snow on 5 November." Lieven cites the difficulty of finding food for troops and forage for horses in winter as an important contributing factor.
Allied intervention in Russia, winter 1918–19
During the Northern Russian Expedition of the Allied intervention in the Russian Civil War, both sides, the Allied forces and the Bolshevik Red Army knew or quickly learned the principles of winter warfare and applied them whenever possible. However both sides had their resources strained and at times one side or other suffered the severe consequences of underpreparedness, but Chew concluded that winter did not provide a decisive advantage to any of the combatants.
German invasion of 1941
During World War II, the Wehrmacht lacked necessary supplies, such as winter uniforms, due to the many delays in the German army's movements. At the same time, Hitler's plans for Operation Barbarossa actually miscarried before the onset of severe winter weather: he was so confident of a quick victory that he did not prepare for even the possibility of winter warfare in Russia. In fact his eastern army suffered more than 734,000 casualties (about 23% of its average strength of 3,200,000) during the first five months of the invasion before the winter started. On 27 November 1941, Eduard Wagner, the Quartermaster General of the German Army, reported that "We are at the end of our resources in both personnel and material. We are about to be confronted with the dangers of deep winter." Also of note is the fact that the unusually early winter of 1941 cut short the rasputitsa season, improving logistics in early November, with the weather still being only mildly cold.
Winter effects on warfare
In his 1981 paper, Fighting the Russians in Winter: Three Case Studies, Chew draws on experiences from the Allied-Soviet War in Northern Russia during the Winter of 1918–19, the destruction of the Soviet 44th Motorized Rifle Division, and German–Soviet War during World War II to derive winter warfare factors pertaining to military tactics, materiel and personnel:
- Tactics – Defensive positions are highly advantageous because of the ability to maintain warmth and protection, compared to attacking in winter cold. Mobility and logistical support are often restricted by snow, requiring plowing or compacting it to accommodate wide-tracked vehicles or sleds. Infantry movement in deep snow requires skis or snowshoes to avoid exhaustion. Sound carries well over crusted snow, diminishing the element of surprise. Explosives are useful for excavating foxholes and larger shelters in frozen ground. Attacking field kitchens and encampments deprives the enemy of food and shelter. Rapid removal of the wounded from the battlefield is essential to their survival in the cold.
- Materiel – Weapons and vehicles require special lubricants to operate at low temperatures. Mines are unreliable in winter, owing to deep snow that may cushion the fuse or form an ice bridge over the detonator.
- Personnel – Proper winter clothing is required to maintain body heat and to avoid such cold injuries as frostbite. Troop efficiency and survival requires either making use of available shelter or providing portable shelter.
Sandy Woodward, Royal Navy task force commander during the Falklands War, which was fought before the oncoming South Atlantic winter, remarked in his memoirs, "I thought then, for the first time, about the arrival of General Winter. If he had been here ten days ago, he would not have been much help to the Args [Argentines], dug in on the heights with no chance of their High Command getting their air forces into the skies. But I think he would’ve finished us."
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- Chew, Allen F. (December 1981). "Fighting the Russians in Winter: Three Case Studies" (PDF). Leavenworth Papers. Fort Leavenworth, Kansas: Combat Studies Institute, U.S. Army Command and General Staff College (5). ISSN 0195-3451. Retrieved 2016-12-10.
- Frost, R.I., 2000, The Northern Wars, 1558–1721, Harlow: Pearson Education Limited, ISBN 9780582064294
- Lieven, Dominic (2010). Russia Against Napoleon: The True Story of the Campaigns of War and Peace. Penguin. p. 656. ISBN 978-1-101-42938-9.
- Davydov, Denis (1835). Мороз ли истребил французскую армию в 1812 году? (Was it Frost that Devastated the French Army in 1812?) (in Russian). IQ Publishing Solutions LLC. p. 20. ISBN 978-5-4478-3819-5.
- Woodward, Sandy (1982). One Hundred Days: The Memoirs of the Falklands Battle Group Commander. Annapolis, MD: Naval Institute Press. p. 334.