Which is true of the Korean War? Helicopters were used to drop Agent Orange on the forests

North Korea flew over 1 million combat missions

It is the first war using arial combar

North Korea attacked the United States

That would be #1 from what I have read.

Explanation:

The text I read said: "Agent Orange was a powerful herbicide used by U.S. military forces during the Vietnam War to eliminate forest cover and crops for North Vietnamese and Viet Cong troops."

C) North Korea attacked the United States

Explanation:

b.europe i believe because north america has 3 countries in a way and with all the stuff with illegal immagrants from mexico or whatever so i would say europe.

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.