Dissatisfaction with Chamberlain's leadership became widespread in the spring of 1940 after Germany successfully invaded Norway. In response, the House of Commons held the Norway Debate from 7 to 9 May. At the end of the second day, the Labour opposition forced a division which was in effect a motion of no confidence in Chamberlain. The government's majority of 213 was reduced to 81, still a victory but in the circumstances a shattering blow for Chamberlain.