The countries that used the Hawk were Argentina, Britain, China, Finland, France, Netherlands, Norway, Peru, Portugal, South Africa, Thailand, and United States.
20 Hawk 75s were assembled by FMA in Argentina. 30-40 Hawk 75As assembled by CAMCO in China. 5 Hawk 75As assembled in India by Hindustan Aircraft.
350 of 620 ordered were received by France by the time of the German invasion. They claimed to have shot down 311 Luftwaffe aircraft.
The rest that weren't delivered were sent to the Royal Air Force and were designated the Mohawk.
The Curtis P-36 was the first to shoot down a Japanese aircraft at Pearl Harbor. There were four Curtiss P-36s in operation at Pearl Harbor.