916
Kurdish militiamen and U . S . special operations troops linked up with more than 1 , 000 U . S . Army paratroopers Thursday to secure the area around a strategic air strip , as the first large coalition ground force in northern Iraq began opening another front against Saddam Hussein ' s regime .
 attack: front
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: front