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Despite a security crackdown over the weekend in Baghdad and an announcement that some 7 , 000 policemen had returned to their jobs since the end of the war , ordinary Iraqis still felt unsafe on the street with gunfire rife and police a near invisible presence .
 attack: war
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: declare bankruptcy, transfer ownership, marry, die, phone write, arrest jail, convict, sue, transfer money, end organization, start organization, end position, merge organization, start position, transport, charge indict, elect, attack, injure, born, extradite, release parole, sentence, demonstrate, meet, trial hearing, divorce, nominate, fine, appeal, pardon, execute, acquit 
Text: {0} 
Answer:
 attack: war