In 1806, he became aide-de-camp to Marshal Pierre Augereau and took part in the Prussian and Polish campaign, distinguishing himself particularly at the Battle of Jena, where he was wounded, and at the Battle of Eylau, where his horse was killed under him.
Marshal Augereau, having been forced to take leave from the army as a result of his wounds, obtained that his aide-de-camp would join Marshal André Masséna, under whose orders Marbot served until the Treaties of Tilsit.

From 1808 to 1811 he fought in the Spanish campaign, serving as aide-de-camp to Marshal Jean Lannes during the Battle of Tudela on 23 November 1808.
His brilliant conduct earned him a promotion to the rank of chef d'escadron (squadron leader) and he became attached to the staff of Marshal Louis-Alexandre Berthier, Prince of Neuchâtel.

After the capture of Madrid and the evacuation of the British forces at the Battle of Corunna, he left Astorga to carry letters from Emperor Napoleon I to his brother Joseph Bonaparte, who had become the King of Spain.
He was injured during an ambush by guerrillas on 4 January 1809 and was imprisoned, almost dying from his wounds, in Cádiz.
In February 1810, he managed to recover his liberty along with Chef d'escadron de Turenne.
He reached the coast of Africa through many dangers, and finally joined Marshal Claude Victor-Perrin's corps during the Siege of Cádiz by the French forces.

Having returned from a mission in Paris, he took part in the Third Portuguese campaign as aide-de-camp to Marshal André Masséna, Prince of Essling, between 1810 and 1811.

In 1812 he joined the 16th cavalry regiment of chasseurs as chef d'escadron and took part in the Russian campaign.
He was wounded during the fierce combats of the Battle of Vitebsk, after having his horse killed under him.
He was made prisoner by the Russian army and was sent to Saratov, where he shared the captivity of a large number of captured officers, including General de Saint-Geniès, Colonel de Saint-Mars and Captain de Ségur.
He did not return to France until the end of the war in 1814, and subsequently joined the État-Major in Paris.

He became aide-de-camp to Marshal Louis-Nicolas Davout, Prince of Eckmühl, during the Hundred Days, after which he retired from active service until 1830.
In 1806, he became aide-de-camp to Marshal Pierre Augereau and took part in the Prussian and Polish campaign, distinguishing himself particularly at the Battle of Jena, where he was wounded, and at the Battle of Eylau, where his horse was killed under him. Marshal Augereau, having been forced to take leave from the army as a result of his wounds, obtained that his aide-de-camp would join Marshal André Masséna, under whose orders Marbot served until the Treaties of Tilsit.
From 1808 to 1811 he fought in the Spanish campaign, serving as aide-de-camp to Marshal Jean Lannes during the Battle of Tudela on 23 November 1808. His brilliant conduct earned him a promotion to the rank of chef d'escadron (squadron leader) and he became attached to the staff of Marshal Louis-Alexandre Berthier, Prince of Neuchâtel.
After the capture of Madrid and the evacuation of the British forces at the Battle of Corunna, he left Astorga to carry letters from Emperor Napoleon I to his brother Joseph Bonaparte, who had become the King of Spain. He was injured during an ambush by guerrillas on 4 January 1809 and was imprisoned, almost dying from his wounds, in Cádiz. In February 1810, he managed to recover his liberty along with Chef d'escadron de Turenne. He reached the coast of Africa through many dangers, and finally joined Marshal Claude Victor-Perrin's corps during the Siege of Cádiz by the French forces.
Having returned from a mission in Paris, he took part in the Third Portuguese campaign as aide-de-camp to Marshal André Masséna, Prince of Essling, between 1810 and 1811.
In 1812 he joined the 16th cavalry regiment of chasseurs as chef d'escadron and took part in the Russian campaign. He was wounded during the fierce combats of the Battle of Vitebsk, after having his horse killed under him. He was made prisoner by the Russian army and was sent to Saratov, where he shared the captivity of a large number of captured officers, including General de Saint-Geniès, Colonel de Saint-Mars and Captain de Ségur. He did not return to France until the end of the war in 1814, and subsequently joined the État-Major in Paris.
He became aide-de-camp to Marshal Louis-Nicolas Davout, Prince of Eckmühl, during the Hundred Days, after which he retired from active service until 1830.
Adolphe Marbot