This sale will put a check and balance into the region in terms of Arab emnities. However, it potential consequences for the Arab/Israeli conflict may give rise to escalation. What will Israel do if there is a war that Saudi Arabia gets involved in. It will have to escalate the type of weapons it must use to defend herself. Hopefully, it never comes down to that.
Netanyahu condemns West Bank arson attack, calling it 'terror' (Haaretz)
from the article: U.S. finalizes $30 billion weapons deal with Saudi Arabia