There were only a few Jewish Survival Strategies (Possibilities) during the Holocaust in GG.

Emanuel Ringelblum describes the main Jewish Survival Strategies for the Jews who were trying to leave the ghettos.

Ghettos were actually enclosed by several barriers. The most difficult, most effective, was the invisible one. The ghetto walls, the borders of the ghetto, could be passed. The problem was an invisible barrier that started just outside the wall.