The American delegation comprised McFarlane, North, Cave (a retired CIA officer who worked in Iran in the 1960s–70s), Teicher, Israeli diplomat Amiram Nir and a CIA translator. They arrived in Tehran in an Israeli plane carrying forged Irish passports on 25 May 1986. This meeting also failed. Much to McFarlane's disgust, he did not meet ministers, and instead met in his words "third and fourth level officials". At one point, an angry McFarlane shouted: "As I am a Minister, I expect to meet with decision-makers. Otherwise, you can work with my staff." The Iranians requested concessions such as Israel's withdrawal from the Golan Heights, which the United States rejected. More importantly, McFarlane refused to ship spare parts for the Hawk missiles until the Iranians had Hezbollah release the American hostages, whereas the Iranians wanted to reverse that sequence with the spare parts being shipped first before the hostages were freed. The differing negotiating positions led to McFarlane's mission going home after four days. After the failure of the secret visit to Tehran, McFarlane advised Reagan not to talk to the Iranians anymore, advice that was disregarded.