previous comments he had made, i would say that what he's faced with here is a humanitarian crisis and had to send a message that no longer are we going to lead from the back when it comes to chemical weapons and lead from assad. talk about north korea, i think kim jung-un was sent a message that president trump is not to be trifled with a message. the u.s. will go it alone and get it done themselves amch. >> it is, though, a change in policy essentially from what donald trump talked about during the campaign. he was asked about humanitarian interventions. just recently he said i'm not the world's policeman, i'm not president of the world, but this is clearly take a leadership on the world stage in terms of