I wonder what Saudi Arabia is looking to protect itself from, other than ISIS?
The western people don't understand the dynamic of the Middle East and how things are in term of politics, regional issues to be precise....conflicts..etcWe've many enemies,we know some of them but some we don't. Moreover, it is our duty to stand with our friends when they ask us for help. In the Middle East, we're living an arm race between the regional powers in region. If you don't have a strong army to be " hard to get " in your enemy's eyes, your people won't live the normal life that other people in rest of the world have. And your country will not be a " sovereign country ". Many will violate your sovereignty and try to intervene in your affairs , then neither the UN will save you nor your closest ally. Look at Iran, they are intervening using their militias in Syria ,Iraq then they came to Yemen ! But once they saw the coalition started the mission of ‘‘ Decisive Storm ‘‘ in order to end the presence of Iran in Yemen , the Iranians kept watching and threaten us without deeds because they can't carry the results if they'll think to mess with us.