In the last war Israel inflicted $billions of damage to Lebanon's infrastructure, killed over 1000 civilians, yet failed to destroy Hezbollah. Hezbollah retained its political influence and its military was seem as pushing back the might Israeli army, inflicting punishing damage on it in the process. The lesson for Lebanon/Hezbollah was mmediately clear, it must create a punishing deterrent against future Israeli aggression, namely arming itself with devastaintly more potent missile "defence". That and clear communication (Nasrallah) that in any future war massive damage will be met immediately with a response in kind suggests the lesson was well heeded. Thus as far as lebanon is concerned we see merely the manifestation Israel's failure. The state of relations with the U.S.A. is yet another direct consequence of that same failure. A costly failure indeed, one clearly not repaid by the ill conceived Gaza bloodbath.
Iran: IAEA visit to U.S. Senate damages UN neutrality (DPA)
from the article: Syria is shipping Scud missiles to Hezbollah