sentences:  The "Royal Regiment of Two Bridges", commanded by the Comte Christian de Forbach, was part of the Expédition Particulière (French Expeditionary Force) that was sent to the United States to help it fight for its independence.The Regiment was commanded by Comte Christian de Forbach (son of Christian IV, Count Palatine of Zweibrücken).His deputy commander was his brother Philippe Guillaume (later renamed to Wilhelm) and was one of the four regiments that arrived at Newport with Rochambeau in 1780 and went on to participate in the Battle of Yorktown on the side of the Americans in 1781.