 Complete the following phrase:  The Nine Years War was professionally and personally frustrating for the Prince. Initially fighting on the Rhine with Max Emmanuelreceiving a slight head wound at the Siege of Mainz in 1689Eugene subsequently transferred himself to Piedmont after Victor Amadeus joined the Alliance against France in 1690. Promoted to general of cavalry, he arrived in Turin with his friend the Prince of Commercy; but it proved an inauspicious start. Against Eugenes advice, Amadeus insisted on engaging the French 