The situation does not require our intervention because Turkey and the GCC are making progress. The prospect of Chemical weapons may require US very special trained forces for containment.
There is a strategic plan but we have not been provided details.
Direct US participation of any sort should be off the table. It might be interesting to see how competent the Syrians are to use their chemical weapons. Why all the high moral tone about chemical weapons anyway? Gassing is more inhumane than high explosives? Chemical weapons can be persistent nuisances but that is the problem of those on the ground not us.