This is the first time I've gone to war in six months.
Can you list up to ten reasons why we shouldn't go to war?
I want to get a six pack before the war begins.
You have war and conflict. Of course, conflict comes with war, so this word just means war.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.