 Complete the following phrase:  At first destined for a career as an architect for which he showed a marked disposition, he fought in his first battles in 1788 as a volunteer in the Canaris after its uniforms colour cavalry regiment during the Brabant Revolution. He became a lieutet colonel in that unit in November 1789. After the revolution was stopped in 1790, he fled and offered the First French Republic his services, commanding a battalion of the Belgian Legion, fighting at 