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 Suvorov 's victory in the Battle of Focșani ( 1 August 1789 ) .
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 Suvorov 's success in the Battle of Focşani ( August 1 , 1789 ) .