Anderman
Donor
The Ministry of Munitions was formed as a move away from laissez faire approach. Well, no other nation ever tried to pursue laissez faire during wartime except for Britain before the Shell Crisis. Germany adopted command economy from day 1.
War itself is the opposite of "laissez faire" just saying.
Btw you should use search function here and look for "Hindenburg program" just to read how good a command economy can be.