攻 (Kanji for attack)

Onyomi

KOU

COLIN Powell was the director of the army because his attacks were so crafty.

せ*める	attack - specifically, something which has been planned in advance. Not a bar-room brawl. You could use it about an army attack, but also about a fencer who deliberately chooses a certain attack-style to defeat her opponent. ★★★☆☆

攻撃(こうげき) する

attack ★★★☆☆
攻 (attack) + 撃 (charge) = 攻撃 (attack)

A military-style massive, planned attack.

専攻(せんこう)

major ★★☆☆☆
専 (specialty) + 攻 (attack) = 専攻 (major)

college major, field of study

に侵攻(しんこう) する

invasion ★☆☆☆☆ NP
侵 (perpetrate) + 攻 (attack) = 侵攻 (invasion)

She's skillful with her PIRATE HOOK.

He's successful because of his STRENGTH.

The attack was CRAFTY.

I want to renew and improve MYSELF.