The only ground meat pie with a pastry crust that I'm aware of is tortiere... No pastry in Canada either, nor does that appeal. The only ground meat pie with a pastry crust that I'm aware of is tortiere, also delicious. Pot pies generally have something chunky and stewish inside (beef or chicken).
Germany never did. East Germany became communist in 1945 when the USSR ocupied it after WW II.
When the government closed the newspaper, Marx immigrated to Paris, France. There he became a communist, blending German Hegelianism with French socialism, arguing that communism was a better economic system, as it would allow people to freely develop their nature with cooperative production.