Just before the outbreak of the war, an active campaign to push observance by Jewish males over 13 years of age to do the “mitzvah” of tefillin was launched by Rabbi Menachem M. Schneerson, the “Lubavitcher Rebbe" of New York—leader of a Hasidic sect with branches throughout the world.
Since the Six Day War in June which resulted in the creation of a united Jerusalem as part of Israel, more than 400,000 members of the Jewish faith are estimated to have observed the commandment to wear Phylacteries—tefillin In Hebrew—at the city’s Western, formerly known as the “Wailing” Wall.
The Boston Globe, Nov. 25, 1967