The failure by Israel, Saudi Arabia and the Gulf States to stop the agreement between the 5 +1 countries and Iran is a very welcome development, which breaks the daily increase in violence in the Middle East.
In practical terms it will not change a lot. Iran’s nuclear programme is for civil nuclear power and medical applications, not for bomb making. This has been verified many times by international nuclear bodies and even the CIA. The significance of this agreement is that it makes it much more difficult for Israel to attack Iran with the excuse of eliminating a nuclear bomb programme. It will also make it far more difficult for Saudi Arabia and the Gulf States to demonise Iran in their campaign to use Sunni Muslims to fight Shia Muslims. The agreement provides the chance to stop the fratricidal slaughter in the Middle East and North Africa, particularly in Syria, Iraq and Lebanon.
Much credit for the breakthrough must go to Russian and Iranian diplomacy, but the biggest change has been the realisation by people in the US and Europe that their soldiers and finances are being used by Israel, Saudi Arabia and the Gulf States to make war on Iran to defend their own fascist aims.