Given the task definition and input, reply with output. 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].

The grim reality of life in Syria is told through the eyes of the down-trodden and oppressed refugees living there in a harrowing new book. Syrian journalist Samar Yazbek has told how people are trapped between ISIS barbarians and president Bashar al-Assad's brutal regime live in constant fear of beheadings and bomb strikes. Samar fled the war-torn country in 2011 after criticising Assad – but sneaked back in three times to get accounts from people living on the front line who have carved out lives among the rubble. She described seeing a girl of around seven with no arms or legs who she saw sat on a chair outside a kiosk in the city of Saraqeb, just seconds before the area was destroyed by an air strike.Journalist Samar Yazbek gave a chilling account of the brutality faced by people living in SyriaShe told how president Bashar al-Assad's troops crushed houses and slaughtered women and children in the city of SaraqebA soldier told her how he joined rebel forces after he said his friend shot in the groin and killed after he refused to rape a childSamar told how she has to steel herself when she sees little fingers in the rubble and has to pull out the bodies of childrenA soldier, crippled from a bullet, told her how he doesn't recognise friends he has to bury after bombings because 'their faces are so mangled' 
 Question:By _'s next visit, the battalion's headquarters had been bombed.

Samar Yazbek