How did Fritz Haber utilize Le Chatelier's principle to encourage ammonia formation?

Answer

By increasing the pressure

Since the forward reaction produces fewer moles of gas (four reactant moles yielding two product moles), increasing the pressure thermodynamically favored the side with fewer moles, which is the formation of ammonia.

How did Fritz Haber utilize Le Chatelier's principle to encourage ammonia formation?
inventionwaterremovalprocessNitrogen