War Damages
Ravages Of War
noun
One of the most evil things about war are the war damages that happen during it. Whole countrysides, cities, and lots of people can die. So I'd say the ravages of war are the most evil thing about war. Period.
せんか
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
戦禍を逃れて田舎に疎開した。
We escaped the ravages of war and evacuated into the countryside.