The reactionary Israeli prime minister ‘Bibi’ Netenyahu has informed US president Obama that Israel won’t give America warning when it attacks Iran.
By agreement, the US is not obligated to come to the Zionist state’s aid, since Israel will have initiated war like actions. But, owing to mad temper of the times in the US, it probably shall for its own pigheaded policy towards Iran.
If Israel carries out its threat, Tehran will rain down missiles on Israel, killing more civilians than military. You can say, Israel deserves it, but the broader geopolitical implications spell disaster for the Zionist state, the region, and the tyranny its holds on oil & gas.