DOHA, Qatar _ If Saudi Arabia and the United Arab Emirates hoped the shock of their sudden economic and diplomatic blockade of Qatar would produce a rapid capitulation, it isn't panning out that way.
With the dispute well into its second week, both sides have dug in and are bidding for support from outside powers, above all the U.S., but also Iran, Turkey, Russia and Pakistan. Much will depend on which way the U.S. eventually leans as it weighs addressing longstanding concerns over Qatar's permissive approach to Islamist groups and American geopolitical interests. President Donald Trump has tweeted a message very different from his administration's during a crisis that carries significant implications for regional stability and U.S. military capabilities.
Here are four scenarios for what may happen next, ranging from a relatively painless deal to a Saudi-led invasion of Qatar.
