A little bit later someone brought a shotgun on one of the planes and the rest is literal history.
I get we're, for the most part, fighting the ideologies of the other country, but it's a real shame we can't live in peace. It's the few bad apples - the greedy, the criminals, the oppressors, the deceiving - that ruin it for everybody.
Which has a long history between the Germans and French...
Just before WWI, Caproni designed an airplane with a machine gun mounted above the propeller , but the military wasn't that interested in it. It wasn't until the invention of the interrupter gear (credited in part to Roland Garros and part to Anthony Fokker) that air-to-air combat got to be really deadly, on account of pilots being able to fire accurately at other aircraft.