Frederick William III hesitated about the military reforms, the officer corps and nobility resisted them and even the bourgeoisie remained sceptical. The start of the German campaign of 1813 was the key factor. On 9 February 1813 a decree replaced the previous conscription system with an obligation to serve by canton ("Kantonpflichtigkeit"), and this new system had to last for the whole war. Thus it looked to restore the pride and position of the common soldier in adapting army discipline to civil law. The punishments and in particular the 'schlague' (consisting of a soldier being beaten) were abolished. The social differences had to disappear. The Treaty of Tilsit had reduced the Prussian army to 42,000 men, but Scharnhorst put in place the "Krümper system", which consisted of training a number of soldiers in rotation without ever exceeding the numbers authorised by the Treaty. Between 30,000 and 150,000 supplementary men were also trained – the training system changed several times and so it is difficult to work out precise numbers. Compulsory military service was ordered by Frederick William III on 27 May 1814 then fixed by a military law on 3 September the same year: