 Complete the following phrase:  In 1759, Kleist became chief of Regiment Szekely, also called the Greens due to the domit color of their uniforms, a position he held until his death; hence forth he was also known as Green Kleist. In 1760 Kleist was promoted to the rank of colonel. On 15 August 1760, the Kleist Hussars played an essential role in the 