When the
American Revolution began, the
British Army was too small to overwhelm the rebellious colonies with armed might. Subsequently, the
United Kingdom entered treaties with a number of German principalities which provided the British Crown with allied contingents for service in North America in exchange for monetary subsidies. A mutual aid-and alliance treaty between United Kingdom and Hesse-Hanau was entered in February 1776. The treaty stipulated that Hanau would assemble a corps of
infantry of 668 men available to Britain. The corps had to be properly officered with the men ready for campaign service; the corps fully furnished with tents and equipment. In addition to the oath of fealty already sworn to the hereditary prince as reigning count of Hesse-Hanau, the officers and men should also swear an oath of allegiance to King George III. Hanau would maintain the number of men in the corps through annual recruitment as necessary. Britain would give the corps the same pay and allowances as enjoyed by British troops and wounded soldiers would be treated in British military hospitals in the same way as British troops. The Hanau regiment that served in North America as
Regiment «Erbprinz » was first raised in 1763 as the "Regular Land-Battalion" with seven companies. In 1765 the corps was renamed the "Hanau Battalion", with a grenadier company added. In 1766, the ruling Count
William became the
Chef of the corps, now reduced to six companies. In 1768, the corps was renamed the "Hanau Regiment". In 1776, the regiment was reorganized into the
Infanterie-Regiment « Erbprinz » and its first battalion dispatched for service in North America. A second battalion of four companies was formed from the men of the Hanau Regiment left in the homeland. After the end of the
American Revolutionary War, the two battalions were merged into one regiment which in 1785 received the name "Hesse-Hanau Grenadier Regiment"; a name that was changed to
Leib-Grenadier-Regiment the following year. In 1789 the regiment became the second battalion of the
Hesse-Cassel "Guards Grenadier Regiment". This regiment was a predecessor of the
Prussian Füsilier-Regiment « von Gersdorff » (Kurhessisches) Nr. 80. ==Organization==