Hezbollah is confirming that the next conflict will precipitate a regional response including Iran, Syria and Hamas. No doubt this is true. However it also means that any defensive or even pre-emptive moves by Israel will very quickly conjoin all 4 parties in action.
UN: Gaza could be 'uninhabitable' by 2020 if trends continue (AP)
from the article: Hezbollah No. 2: Israel decides if there will be regional war