>> that is the french prime minister there. russia admits they have a military personnel in syria and transferring weapons to the regime of assad. >> that's a huge admission. u.s. surveillance is picking up signs of a more significant buildup. here's pentagon correspondent barbara starr. >> reporter: as vladimir putinen sends more of his military in to syria, secretary of state john kerry making a second call to russian foreign minister sergei lav rov, wrap chetting up u.s. pressure. >> reports of build up if you will in syria and made very clear our view that if true and borne out those reports could lead to greater violence. >> reporter: russia doesn't appear to be backing down. two russian amphibious ships have unloaded geempl u.s. satellites have seen more than