retaliate

verb
re*tal*i*ate \ ri-ˈta-lē-ˌāt \
1606{ds|t|||}
  • to return like for like; especially : to get revenge
  • to repay in kind

counterretaliation

noun
coun*ter*re*tal*i*a*tion \ ˌkau̇n-tər-ri-ˌta-lē-ˈā-shən \ -ˌrē- \
1813
  • an act of retaliating against a previous retaliatory act
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