Andrei Gromyko
Katz was the Israeli ambassador to the Soviet Union in the run up to the Six-Day War. He served in that position for 21 months from September 6, 1965 to June 10, 1967. Katz was expelled from the Soviet Union by Andrei Gromyko on the last day of the Six-Day War. Gromyko is said to have told Katz not to let his emotions get the better of him.