Why did the invention of aircraft create challenges to national sovereignty?

A$)$ Aircraft are operating in the $3-$D airspace. This raises a technical challenge: How do we illustrate $3-$D space on a $2-$D map?

B$)$ The design and production of modern aircraft rely on multi$-$national collaboration. This raises the issue of governance: Which nation should oversee the entire process?

C$)$ As aircraft are operating in the airspace, the invention of aircraft raises this question: Is airspace part of territory to which a nation has sovereignty?

D$)$ Aircraft are being operated internationally, which raises a question: Where should aircraft be registered?