Israeli Prime Minister Binyamin Netanyahu said Monday Iran is accelerating efforts to enrich uranium and called for tougher international sanctions to prevent it from building a nuclear weapon. Speaking to a visiting delegation of American-Jewish organizational heads in Jerusalem, he said Iran needs to be convinced it faces a credible military threat. “I drew a red line” on the bomb at the UN, Netanyahu said. The Iranians “haven’t crossed that line, but what they are doing is shortening the time it takes to get there.”

Netanyahu said he expects to discuss the Iranian nuclear issue with US President Obama who arrives March 20 on a visit to Jerusalem, as well as the civil conflict in Syria and efforts to renew peace talks with the Palestinians.