ERBIL — US Special Representative for Syria Engagement James Jeffrey urged other countries to share a larger burden in facilitating the conditions for peace in Syria, while floating the idea of the United Nations enforcing a no-fly zone for parts of Syria. "Remember we were present not in northern Iraq but over northern Iraq in Operation Northern Watch for 13 years. That can be a UN force," he said on Tuesday, referring to the joint US-UK-Turkey no-fly zone in the late 1990s that protected Kurdish areas from the air force of Saddam Hussein. Jeffrey briefed reporters in Washington, D.C., after...