Siniora was the pro-west leader of lebanon at the beginning of the 2006 war. Hizbollah was located primarily in south Lebanon. When Hizbollah raided an IDF border post, Israel inexplicably targetted civilian targets all over Lebanon, killing more than 1000 civilians. This constituted a major escalation of the original raid. After such an Israeli attack, it became impossible for a pro west government to survivie in Lebanon. Ironically, Israels attack brought increased political power to Hizbollah and pushed Lebanon toward Iran and Syria. Whatever complaint Israelis have against Lebanon, they have earned and richly deserve Lebanons new order.
Donald Trump: Israeli settlement construction in West Bank should 'keep going' (Haaretz)
from the article: Lebanon army chief: We must be wary of Israel's military schemes