In an unprecedented resolution, the European Parliament has called for an arms embargo on Saudi Arabia in relation to its brutal military intervention in Yemen. Other issues such as the occupation of Bahrain, its horrible human rights record, the fact that it is a most cruel and totalitarian dictatorship or that it has been for decades behind Sunni Islamist terrorism everywhere, have not been included in the resolution, yet, considering the very conservative and imperialist policies that the EU institutions distill all the time, it is a remarkable vote and a sign that a growing amount of people in the West is getting most annoyed at the Islamist terror chaos unleashed in West Asia by NATO and its local allies: Saudi Arabia, Turkey and Israel primarily.
As you may know the EP has, sadly enough, almost no power (only approving or not the EU budget and minor stuff like that) but it still exerts a moral influence on the EU, being the only democratic body of this sui-generis confederation. Therefore we should not undermine its importance.
Personally I feel that all what is happening will soon result in a dramatic socio-political crisis in Saudi Arabia: you can't rule a country of 30 million without other feedback than just police reports. Not for long in any case. The question of democracy is not merely a question of rights and freedoms but, from the rulers viewpoint, primarily one of feedback and cohesion.
Anyhow, with such low oil prices, the money is running out and Saudia is just rushing forward to nowhere, risking even a World War with its threats of invading Syria. If this happens, the conflict in West Asia will run out of control in no time: Iran will no doubt intervene, backed by Russia and China, and that would be a major event. My opinion is that the West will doubt and finally not intervene directly, largely because there is such an exhaustion of the fictional narrative of "war on terror" and "clash of civilizations" that a lot of people even in key power positions will be tempted to let Iran do the moping instead of risking not just World War but also internal political stability to save a totally despicable regime such as the Saudi one.
I can only imagine that, possibly, the Turkish intervention (which may be the key WW trigger) will be halted on its heels by a military coup and/or suspension of its NATO membership.
But I'm trying to be rational-optimistic. It can also all degenerate in an uncontrolled WW-like conflict, whose result may well be the destruction of Humankind. Let's try to avoid this worst possible outcome by all means necessary.