7 strokes
aggression, attack
On'Yomi: コウ
Kun'Yomi: せ.める
15 strokes
beat, attack, defeat, conquer
On'Yomi: ゲキ
Kun'Yomi: う.つ
9 strokes
army, force, troops, war, battle
On'Yomi: グン
Kun'Yomi: いくさ