counteraggression
noun
                                                                                                                            
                                                            coun·ter·ag·gres·sion
                    
                                                                                                              
                                                                                                                                  ˌkau̇n-tər-ə-ˈgre-shən  
                                                      
                                                          
            
            variants  
 or counter-aggression
        
    
            
               plural counteraggressions or counter-aggressions            
        
    
                                
              
          
                                                      : an act of aggression (such as an attack) that is undertaken in response to another's aggression                                      
              
                             
… the limited importance of deterrence could partially explain why revenge is more effective in triggering counteraggressions and feuds than in avoiding them.— Francesa Giardini and Rosaria Conte
Francesa Giardini and Rosaria Conte
                         
                
                                
            also                
          
                                                      : the practice of undertaking such acts                                       
              
                             
            Violence, especially political violence, is usually a pattern of aggression and counteraggression that has a history and which stretches back deep into time.    — Simon Critchley
Simon Critchley          
                         
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  Merriam-Webster unabridged




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