 Complete the following phrase:  Gorchakov took part as a general officer in the Italian and Swiss operations of 1799 together with general Rimsky-Korsakov. He returned to Russia afterwards, and became chef of the Neva Musketeer Regiment on 7 February 1800, while serving as the governor of Vryborg as well as the chef of the Vryborg Garrison regiment between March and August in 1800. He then served in the next war against Napoleon in Poland in 18061807 