 Complete the following phrase:  In 1806 the Infantry of the Guard included a regiment of Grenadiers of the Guard and one of Voltigeurs. The Guard Grenadiers were styled on the French Old Guard, wearing the same type of distinctive bearskin cap, topped with a flaming grenade badge. According to some sources, the Guard Grenadiers had 3 battalions - one of which wore red and white uniforms, and existed solely to guard the Royal Palace of Naples. The other two Grenadier battalions were frequently sent out into the field, serving in Russia 1812 and the War of the Sixth Coalition. The Voltigeurs of the Guard had only 2 battalions, and acted as light infantry. These also served in Russia, and accompanied Murat back to Naples after the disastrous 