And what is absolutely true is that we need to make sure that we bring about an end to the civil war in Syria, and John Kerry, through the work he's been doing in Vienna negotiations and this week in New York, is seeing some progress in bringing Russians and Iranians together but creating a safe zone for Syrian refugees. [SEP] We've tested, we've looked at repeatedly, the problem is that, again, without a large number of troops on the ground, it's hard to create a safe zone like that.
Topic continuity: continue