Invasion
noun, verbal noun
If you invade with aggression that's an invasion.
しんこう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
奴らが山のてっぺんにある俺たちの村を侵攻しようとした時、敵陣が全員高山病に罹ってしまったのには笑えたよ。
It was funny that when they tried to invade our village high atop the mountain, the entire enemy camp got altitude sickness.