About what happened with the Israelis shooting the UN buildings and killing 4 innocent people part of the "casques bleus" (forgot how you call that in english) is just plain stupid. This shows that the governement of israel has no idea what he is doing. Worst part is that before their deaths, the UN call the israeli government to stop bombing that place.They have called 10 times in 6 hours.
One of the people who died was a canadian. Before he died, he said on July 18th that they were always bombed directly or undirectly. The closest bombs of around 453 kgs that fell was around 100 meters of their base. So, for sure it wasnt an "accident".
About Al-Qaeda joing the fight, isnt suprising at all. It was just about time. They wanted to make sure that this conflict wasnt going to last less than a week. I bet that we are going to enter another world war with all the allies and stuff. Lebanon allied to the Middle-Eastern countries and other muslims terrorist groups. Israel is allied to the US, UK and Canada (with the current right brainless governement that follows everything that Bush asks him to do.)
In general, what Israel is trying to do (trying to destroy Hezbollah) is quite impossible. Hezbollah is support by the whole Middle-East. If he wants to try to destroy it, he has to wipe out all the muslims in general. Good luck.