Simple past tense and past participle of counterattack.(verb)
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Use "counterattacked" in a sentence
"In Libya, rebel forces had held their lines on the outskirts of Brega for three days, since they counterattacked the city Friday night."
"But the Israelis soon counterattacked, gained control of the canal, and forced an embarrassing cease-fire."
"Within the space of a few seconds – a moment of Madley, perhaps – Christopher Samba tugged back Demba Ba in one box and then, as Blackburn counterattacked, Tim Krul challenged the raiding Rochina, seemingly legally, in the other."