Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: President Barack Obama has ordered the deployment of up to 450 more U.S. troops and establishment of a new training base in Iraq's Anbar province to help rebuild Iraqi forces in preparation for a battle to retake territory lost to ISIS. The plan to expand the 3,100-strong U.S. contingent of trainers and advisers in Iraq marks an adjustment in strategy for Obama, who has faced mounting pressure to do more to blunt the momentum of insurgents. Obama decided on the new troop deployment in response to a request from Iraqi Prime Minister Haider al-Abadi, the White House said. The two leaders met on the margins of the G7 summit in Germany earlier this week.The plan to expand the 3,100-strong U.S. contingent of trainers and advisers in Iraq marks an adjustment in strategy for ObamaHe's faced mounting pressure to blunt the momentum of ISIS - especially after he admitted the other day he didn't have a 'complete' strategyCalled for the establishment of a new training base in Iraq's Anbar province to help rebuild Iraqi forces in preparation for a battle to retake territory lost 
 Question:on the ground will in Anbar would help _ forces devise a.

Iraq