彼の怒りは

his anger

→ 彼
phrase Rare #42,269
his anger は marks “his anger” as the topic; the sentence continues with what is true about it.
JA: 彼の怒りはすぐに収まった。
EN: His anger soon subsided.

「彼の怒りは、彼の敵に新たな恐怖を引き起こすでしょう。」

His anger will instill a new fear in his enemies.

— バーフバリ 伝説誕生 (2015)

彼の怒りは非常に大きかったので、自分を抑えることができなかった。

His anger was so intense that he couldn't control himself.

彼の怒りは見るも恐ろしかった。

His anger was terrifying to behold.