In order to protect their citizens, the U.S. government had previously ordered the construction of underground Vaults to shelter their citizens; however, not nearly enough were made and it is revealed that these were actually giant social experiments by the U.S. government, now known as the Enclave, who had retreated to an Oil Rig offshore. For example, one vault contained only children, another released hallucinogenic drugs into the air after ten days, and another contained only one man and 999 women (with a different vault containing one woman and 999 men). | In order to protect their citizens, the U.S. government had previously ordered the construction of underground Vaults to shelter their citizens; however, not nearly enough were made and it is revealed that these were actually giant social experiments by the U.S. government, now known as the Enclave, who had retreated to an Oil Rig offshore. For example, one vault contained only children, another released hallucinogenic drugs into the air after ten days, and another contained only one man and 999 women (with a different vault containing one woman and 999 men). |