Being at nuclear atomic power and traying to control the middle east, together with the American imperialists, Israel things it can play this game with the support of the US.
In this world nothing seems to mater any more, even if you agree to things through negotiations, nothing is sure that, even if all parties agree, that there would not be a little man that want to interfere in the agreement.
The US, EU, Russia and Iran sitting down in 2015, to negotiate a treaty where Iran agrees on not to develop nuclear missiles, and the US and the EU will at the same time stop the long lasing trade war against Iran. Now Israel who has been the dominant power in the region is not satisfied to play the second fiddle, and will do everything to destroy this agreement, even if they are using their own nuclear weapons to destroy the Iranians. Israel should not forget that the rest of the middle east is not in favor of the policy Israel is trying to put on the Iranians. Israel have to have the US behind its war mangling against the Iranians. At the same time the Iran has a lot of friends who will be prepared to assist the country in their development, which not includes nuclear or chemical weapons. It is so obvious that Israel would like to be the dominant power in the region. It has supported the war in Syria, in Yemen and in other Arab countries.
Israel is already mistrusted in the region, as being the aggressor against the Palestinians and its present government which has not even giving it a thought to negotiate for a two-state solution, with the Palestinians, in the occupied areas. That has sat back the peace process for a two-state solution to zero.
At the same time, with a leader as Netanyahu, which has only shown aggression against the Palestinian people, it will be very difficult to reach a peace agreement in the area. We can only hope for the future that the people of Israel are voting for a more moderate government in the next election, a Government which is prepared to negotiate with the Palestinians for a two-state solution.