risk to u.s. troops inside syria. options being explored include sending u.s. artillery units to syria for longer support for units moving on the city of raqqah and putting u.s. spotters near the front lines to look for isis targets. it's already happening inside iraq. >> we go ahead and bring out the smoke. take it now and move up and try to mark that location. >> reporter: the plan also includes diplomatic and financial options but the pentagon leads stepping up the military campaign, something that president trump has long advocated. >> i know more about isis than generals do, believe me. i would bomb the [ bleep ] out of them. >> reporter: top generals warning even more than 50,000 oiz l -- isis operatives killed, there is worry. >> we estimate 100 countries