As there is conditional marriage, there is also an option of conditional divorce. According to Mishnah Gittin a man can give his wife a get and tell her that it would be valid in case of an adverse event such as: not returning from a trip, being declared missing in action during a war, loosing his mind and other exceptional cases. A different option is for a representative of the husband to write his wife a get if such an event occurs. At times, the rabbis took such initiative and suggested that a conditional get be written. In 1987 Israel extradited a Jew named William Nakash to France. Before he left the country, the Rabbinic Court in Jerusalem insisted that he deposit a conditional get with the court, which Nakash agreed to.
This solution, however, was only suggested in relation to soldiers going off to war. According to Halakhah, it is not possible to give a conditional get once and to keep it until it is needed. If a man goes to war, gives his wife a conditional get, then comes home on vacation and is intimate with her before returning to war, he must give her a new get. This means that a new conditional get must be deposited each time. The IDF (Israeli Defense Forces) has a conditional get version that can be deposited before a particularly dangerous mission.