22 strokes
襲う
osou
to attack; to assault
襲撃
shūgeki
attack; raid
世襲
seshū
hereditary succession
Study kanji on LenGaki

Get the Android app
The app adds offline study, home-screen widgets, stroke-order tracing, speaking practice with pronunciation scoring, and an AI tutor that answers questions in context — none of which fits in a browser tab.