First Western Army

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You can help expand this article with text translated from the corresponding article in French. (August 2011) Click [show] for important translation instructions. View a machine-translated version of the French article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at [[:fr:Première armée de l'Ouest]]; see its history for attribution. You may also add the template {{Translated|fr|Première armée de l'Ouest}} to the talk page. For more guidance, see Wikipedia:Translation.

The First Western Army was created in 1810 as part of the reorganisation of the Imperial Russian Army, and was intended as a defense against the north-western part of the Empire from the expected invasion by Napoleon. The total troops in this Army included 150 battalions, 128 squadrons, 19 cossack regiments, and 590 guns.