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over at the pentagon , the military leaders say that troops are ready to fight right now even as they await word of the president ' s order , but there is major opposition today , france , germany and russia plan a showdown at theupups in a bid to stop the u . s .' s war machine and their voices of dissent echoed by protestors from australia to egypt to university students right here in the united states .
 ( attack: fight,  leaders: attacker) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: declare bankruptcy, transfer ownership, transfer money, marry, transport, die, phone write, arrest jail, convict, sentence, sue, end organization, start organization, end position, start position, meet, elect, attack, injure, born, fine, release parole, charge indict, extradite, trial hearing, demonstrate, divorce, nominate, appeal, pardon, execute, acquit, merge organization, Arguments type: beneficiary, prosecutor, plaintiff, seller, victim, buyer, agent, destination, artifact, organization, recipient, person, place, origin, target, giver, adjudicator, attacker, vehicle, defendant, entity, instrument. 
Text: {0} 
Answer:
 ( attack: fight,  leaders: attacker) 