The allied powers of Britain and France asked Piedmont to enter the Crimean War, partially to encourage Austria to enter, which it would not do unless it was certain that Piedmontese troops were not available to attack Austrian positions in Italy. Cavour, who hoped that the allies would support Piedmont's expansion in Italy, agreed as soon as his colleagues' support would allow and entered the war on 10 January 1855. This was too late to truly distinguish themselves militarily, but the 18,000 man contingent earned Piedmont a position at the Congress of Paris that ended the war.