They don't want to get their hands on US soil. They don't want to follow us here. They don't want to convert you to Islam.
They would, however, attack us here if they could because they are vengence driven.
They want us out of their lands.
They finished their war against the Russians and when the Russians went home it ended there. They did not follow the Russians home even though they could have quite easily, since they would not need a navy to do so...