What is the first air battle of World War 1?

Answer 1

The air forces of the different countries were very small so there were no real air battles. Instead one or two airplanes would encounter some enemy airplanes and they would exchange shots at each other.

Even in WW2, there were not many big air battles. There was the Battle of Britain and some battles between large Allied bomber formations and massive German fighter attack squadrons. There were large air battles among navy aircraft carriers.

Also the very first air-to-air combat in 1914 and early 1915 were single aircraft or two using a rifle and may a simple machine gun. Not all of these small combat encounters were recorded, even if an aircraft was shot down or a pilot killed.

Answer 2

the us-Mexico border. the rio grande used to be the border, but it shifted north, so Mexico said "the river defines the border, the land that WAS yours is ours because of the shift north", and America knew that this was wrong, so they still called it there's. poncho villa led raids into America, and a reconnaissance plane deployed by the U.S. was fired upon by Mexican mounted rifleman (I did not say cavalry because some people would look at cavalry and go: what an idiot, cavalry have swords) but was not hit. that's the answer.