Voluntary war

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In Jewish tradition, voluntary war (Hebrew: מלחמת הרשות; milḥemet ha-reshūt), sometimes called a discretionary war, optional war, a non-obligatory war, or a war of free choice, refers to a war that is waged of free choice by Israel, only at such a time when the people of Israel are settled in their ancestral homeland. It is contrasted with the mandatory war.