 Complete the following phrase:  Josias joined the Habsburg military as Colonel in 1759, participated in the Seven Years War, and rose to the rank of Lieutet Field Marshal by 1773. In the Russo-Turkish-Austrian war of 1788, he commanded an army corps under Freiherr von Laudon, occupying Moldavia, capturing Khotyn in Bessarabia and sharing in Aleksandr Suvorovs victory in the 