- If the US abandoned Ukraine, a Russian victory would have dire consequences, war analysts say.
- The US would be stretched so thin that China could flex its power and possibly invade another country.
- The Institute for the Study of War said the US "has a much higher stake" in the war than people think.
With US military aid to Ukraine jammed up in Congress and Kyiv pleading for more help, a think tank is sounding the alarm.
A Russian victory would not just mean the end of Ukraine, the analysts warn.