Bar and Bat Mitzvah to the event. However, this does not delay the onset of rights and responsibilities of being a Jewish adult which comes about strictly by virtue of age. The obligation to lay tefillin begins when a boy reaches bar mitzvah age. The common custom is for the bar mitzvah boy to begin putting on tefillin one to three months before his bar mitzvah. This way, by the time he is obligated in the commandment, he will already know how to fulfill it properly. The first mention of a party associated with a synagogue bar mitzvah was in the 13th century, so
Milkhemet Mitzvah again arise in modern times in connection to military operations of, and service in, the Israel Defense Forces. To the extent that such operations are perceived to be self-defense, they are viewed as examples of milhemet mitzvah. Hence, the dispute over the terms with accordance to modern times coincides with the question what is Israel's role in the "Arab-Israeli Conflict".Many Israelis perceive the continuous sparks of violence as attempts to undermine the Jewish State, most Israelis may regard the modern wars as "Milhemet Mitzvah" defensive, and therefore, obligatory. On the other hand, large portions of the Israeli society are secular