independently confirm it. we have cnn's nick paton walsh live from syria. nick. >> reporter: it is key the inspein inspectors here trying to figure out what was used in douma last week. whether it was sarin or the nerve sergeant -- agent. russia and iran and bashar al assad cannot be pleased with the international focus upon a war they were getting in the barlba the barbaric way. the chemical weapons has people asking trump's policy. will he stay long enough? what does the west want to do and the remarkable moments they work together inside syria?