Israel is now losing on all sides and they are panicking so there is desperation. This is why you will see Israelis act desperate and panicked because their survival is more important to them than world peace. So now, since Israel is losing on all fronts, such as diplomatic and economic (I will not mention military because they already lost that), the only thing Israel has left is to bring America into a bigger Middle East conflict. This is well known and American neocons are very much onboard this idea. So that is why Israel is always crying about Iran, etc. This is simply a tactic to bring America to Middle East to fight Israel's enemies.
Why you think US politicians have been crying about Iran for many years? These same politicians also seem to support Israel. Very pro-Israel, anti-Iran policy, especially with US republican party.
Israel has supposedly pulled most troops out of Gaza so this means they might use them in other parts, such as northern borders. This is very dangerous for Israel and they know but because it is very dangerous, they know US will come in and save them from Hezbollah and other groups. This is designed to get US to come and save Israel. Because US politicians are mostly very pro-Israel, they will have no problems doing this. Many have said that they want to target Iran.
However, one must not forget that all US military bases are within reach of Iranian missiles so this will be foolish for US but the US is known to do foolish things, such as supporting Israel.
So the US neocons, who run US foreign policy, might be using this opportunity to save Israel and to attack Iran. You don't think Israelis consulted US before attacking Iranian embassy in Syria?! A very dangerous move that is designed to escalate chances of wider war.
Look at this American warmonger, always thirsting for more wars. He is blaming Hamas on Iran instead of blaming Hamas on Israeli occupation and brutal treatment of Palestinians.