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: (CNN) The death in Syria last week of Mustafa Badriddine, Hezbollah's top operational commander in Syria, automatically and inevitably raised the fear of another confrontation between Israel and Hezbollah. After all, Lebanese media close to Hezbollah had been quick to accuse the Israelis of killing its storied terror operative. Hezbollah soon suggested that Israel was not, after all, responsible. Instead, it announced that its man was killed by insurgent groups that the Lebanese Shia militia has been fighting in Syria. Yet while we may never find out the exact circumstances of Badriddine's death, and while the potential for a new and deadly war in the Middle East has, for the time being, been averted, the truth is that an Israeli-Lebanese war that could plunge the Middle East into even greater chaos remains a genuine possibility.Mustafa Badreddine, Hezbollah's commander in Syria, was killed this monthAaron Miller: Tensions continue between Israel and Hezbolllah despite death being blamed on insurgents 
 Question:But it would surely involve the massive use of air power against _ positions, even if they were located in civilian areas, In addition, unlike in 2006, Israel might be more likely to make use of significant numbers of ground forces and elite units, coordinated with air power.

Hezbollah