Gittin 88 - Divorce Procured by Force
The "quickly" of the Master of the World is 852 years, because of the phrase "you will be aged (venoshantem=852) and you will be removed, quickly, from the Land."
Concerning a Ge t that was procured by force, if the coercion was applied by the Jewish court and the husband acquiesced, the Get is valid. But if the coercion was applied by a court of idolaters, the Get is invalid. However even in a court of idolaters, they may beat the husband and tell him "Do what which the Jewish court tells you to do!" and the Get is valid.