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Lieutenant Colonel Robert Leonard , we appreciate your insights in urban combat , something that is not something that the U . S . military would prefer to engage in , but it might become inevitable .
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Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: attack 
  Option: victim, attacker, place, target, instrument 
Text: {0} 
Answer:
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