on the offensive

ready to attack someone with weapons, actions, or words before they attack you
آماده برای حمله به کسی با سلاح، اقدامات یا کلمات، قبل از آن که به شما حمله شود.
حمله پیشگیرانه
Security in the country has deteriorated and our enemies are on the offensive.
... [مشاهده متن کامل]

منابع

• https://dictionary.cambridge.org/dictionary/english/offensive

فرهنگ وبستر:
In or into a situation or position in which one attacks or fights against someone or something
فرهنگ آکسفورد:
. Act or be ready to act aggressively