You have to remember, Israel is considered today in many parts as the 3rd most powerful nation in the world. They may not get the respect, but they are a major power and a considerable threat. We may not know what Israel's military capabilities are but you can bet Russia knows and are not willing to risk a confrontation. This is where the Arab nation's come in. Believe it or not, the Arab-Israeli peace talks are not at all about trading land for peace.
Nobody expects Israel to give up to much in the way of land.
This is all about milking Israel for as much as they can before they finally stage their attack. Russia will be a major part in this attack along with many other Arab nations. This will be a major war, but it will only last for a very short while. As describe in Ezekiel 38-39, God will completely destroy The Arab and Russian forces. He will rain fire and brimstone down from heaven.