telsor
Hall of Famer
1816 - the Remington Arms Company is founded in New York, U.S.A. After knocking up different kinds of rifle and handgun for the U.S Civil War and the Indian War/s Remington scores big when WW1 breaks out.
1854 - the U.K needs new artillery pieces after finding out its cannons were not up to scratch in the Crimean War. Private contractor W.G. Armstrong & Company soon becomes the first big-time private international military-industrial player and company president William Armstrong is knighted after giving his patented breech-loading artillery designs to the British government.
There are probably quite a few others as well.
I was thinking more when Eisenhower warned about it.