Khaled Mashal
Halevy served as the envoy and confidant of five Prime Ministers: Yitzhak Shamir, Yitzhak Rabin, Benjamin Netanyahu, Ehud Barak and Ariel Sharon. He took an active part in a special mission by Rabin in forging the Israel–Jordan Treaty of Peace. After the failure of the Mossad operation to assassinate Hamas leader Khaled Mashal in 1997, he took an active part in Benjamin Netanyahu's mission to return the Mossad men captured in Jordan, and to settle the crisis with the King of Jordan.