During the French invasion of Russia Klicki returned to front-line service and fought at battles of Smolensk, Vitebsk, Mozhaysk and Maloyaroslavets. During the retreat he was among the most successful commanders of the fleeing armies and managed to save almost all of his 4000 men, including viceroy of Italy Eugene Beauharnais. He found his way to Vilna, which he attempted to defend against the pursuing Russians. However, his attempt failed and Klicki retreated with his units further westwards. He then fought in the Saxon Campaign (at Köppen, Motzern, Dresden, Magdeburg and Möchern). On 22 July 1813 he was promoted to the rank of brigadier general and became the commanding officer of the 32nd Light Cavalry Brigade of the V Cavalry Corps under General Édouard Jean-Baptiste Milhaud. He led his brigade in the Battle of Leipzig in October 1813. He moved to France and fought in the Battle of Arcis-sur-Aube in 1814. However, the abdication of Napoleon stopped his military career in the French forces.