U.S. Secretary of State John Kerry continued the Obama administration’s harsh rhetoric against Iran during a visit to Israel. Speaking in Jerusalem Monday, Kerry assured Israeli President Shimon Peres that no option would be taken off the table.

John Kerry: “We understand the nature of the threat of Iran, and as the president has said many times, he doesn’t bluff. He is serious, and we will stand with Israel against this threat, and with the rest of the world, who have underscored that all we are looking for is Iran to live up to its international obligations.”

Kerry met with Israeli Prime Minister Benjamin Netanyahu Monday night. The two claimed progress has been made toward possible peace talks between Israel and the Palestinians.